Adjust headers
This commit is contained in:
William Sandner
parent
cda2dd8a2a
commit
efba347d62
@ -9,9 +9,9 @@ updates.
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<!-- markdownlint-disable-next-line link-fragments -->
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<!-- markdownlint-disable-next-line link-fragments -->
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Jump to: [General](#general-terms) | [Computer science & technology](#computer-science-and-technology-terms) | [Process](#process-terms) | [Software development tools](#development-tool-terms) | [Requirements](#requirements-terms) | [Design](#design-terms) | [Design goals terms](#desigD-DIAGRAMn-goals-terms) | [QA terms](#qa-terms) | [QA goals terms](#qa-goals-terms) | [Additional terms](#additional-standard-terms)| [Project terms](Glossary)
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Jump to: [General](#general-terms) | [Computer science & technology](#computer-science-and-technology-terms) | [Process](#process-terms) | [Software development tools](#development-tool-terms) | [Requirements](#requirements-terms) | [Design](#design-terms) | [Design goals terms](#desigD-DIAGRAMn-goals-terms) | [QA terms](#qa-terms) | [QA goals terms](#qa-goals-terms) | [Additional terms](#additional-standard-terms)| [Project terms](Glossary)
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### General Terms
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## General Terms
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|
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#### Chipping away
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### Chipping away
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|
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The process of removing sample text from templates when that text
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The process of removing sample text from templates when that text
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does not apply to the current project. Often some of the sample text
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does not apply to the current project. Often some of the sample text
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@ -23,26 +23,25 @@ he carved a marble statue of a horse, he replies "It was easy, I
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just started with a big block of marble and chipped away everything
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just started with a big block of marble and chipped away everything
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that did not look like a horse."
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that did not look like a horse."
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##### Attached worksheetD-DIAGRAM
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### Attached worksheet
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The idea is similar to fillD-DIAGRAMing in an IRS form and using worksheets
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The idea is similar to filling in an IRS form and using worksheets
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to calculate subtotals or mD-DIAGRAMake specific decisions. That is to say,
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to calculate subtotals or make specific decisions. That is to say,
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there is a hierarchy to theD-DIAGRAM templates: there are the main templates,
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there is a hierarchy to the templates: there are the main templates,
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and then worksheets for speD-DIAGRAMcific topics. We have divided the
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and then worksheets for specific topics. We have divided the
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information into several fiD-DIAGRAMles so that each file is focused on one
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information into several files so that each file is focused on one
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topic, and so that each filD-DIAGRAMe can be worked on by one person in a
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topic, and so that each file can be worked on by one person in a
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reasonable amount of time.D-DIAGRAM
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reasonable amount of time.
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D-DIAGRAM
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##### Process impactD-DIAGRAM
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### Process impact
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The process impact box on eD-DIAGRAMach template explains where the current
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The process impact box on each template explains where the current
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template fits into the softD-DIAGRAMware development process. It usually
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template fits into the software development process. It usually
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includes a brief comment on who should create the document, and who
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includes a brief comment on who should create the document, and who
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would be expected to make use of it. You can change the process
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would be expected to make use of it. You can change the process
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impact box, but you should not need to.
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impact box, but you should not need to.
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##### Checklist
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### Checklist
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There are two kinds of checklists:
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There are two kinds of checklists:
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@ -53,7 +52,7 @@ There are two kinds of checklists:
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guidelines and checklists that help you identify common errors
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guidelines and checklists that help you identify common errors
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in those artifacts.
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in those artifacts.
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##### Sticky note
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### Sticky note
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The idea is similar to a post-it note attached to a document that
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The idea is similar to a post-it note attached to a document that
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tells you do "sign here" or fill in a certain part. There are two
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tells you do "sign here" or fill in a certain part. There are two
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@ -72,25 +71,25 @@ types of sticky notes:
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After you have done what the sticky note says, you can delete the
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After you have done what the sticky note says, you can delete the
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sticky note.
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sticky note.
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### Computer Science and Technology Terms
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## Computer Science and Technology Terms
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##### ::API (Application Programming Interface)
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### ::API (Application Programming Interface)
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An API is a set of functions that one software component makes
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An API is a set of functions that one software component makes
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available to other software components. That allows other programs
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available to other software components. That allows other programs
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to "call" this program via direct function calls, or more indirect
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to "call" this program via direct function calls, or more indirect
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communications such as [SOAP](#soap) messages.
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communications such as [SOAP](#soap) messages.
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##### ::SOAP
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### ::SOAP
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SOAP (Simple Object Access Protocol) is the message format used by
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SOAP (Simple Object Access Protocol) is the message format used by
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standard web services. It entails sending an XML document to a
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standard web services. It entails sending an XML document to a
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server in order to invoke an operation on the server-side.
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server in order to invoke an operation on the server-side.
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[More information on SOAP](http://directory.google.com/Top/Computers/Programming/Internet/Web_Services/SOAP/?tc=1).
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[More information on SOAP](http://directory.google.com/Top/Computers/Programming/Internet/Web_Services/SOAP/?tc=1).
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### Process Terms
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## Process Terms
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|
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##### Change Control Board (CCB)
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### Change Control Board (CCB)
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A group of people who review proposed changes toD-DIAGRAM the project
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A group of people who review proposed changes toD-DIAGRAM the project
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requirements and/or source code to accept or reject changes in each
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requirements and/or source code to accept or reject changes in each
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@ -100,7 +99,7 @@ the need to redo a lot of testing on new code). A CCB is usually
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composed of managers and representatives of other stakeholders such
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composed of managers and representatives of other stakeholders such
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as the QA group and key customers.
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as the QA group and key customers.
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##### Feature Complete
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### Feature Complete
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A release is called "feature complete" when the development team
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A release is called "feature complete" when the development team
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agrees that no new features will be added to this release. New
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agrees that no new features will be added to this release. New
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@ -108,7 +107,7 @@ features may still be suggested for later releases. More development
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work needs to be done to implement all the features and
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work needs to be done to implement all the features and
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repair defects.
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repair defects.
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##### Code Complete
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### Code Complete
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A release is called "code complete" when the development team agrees
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A release is called "code complete" when the development team agrees
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that no entirely new source code will be added to this release.
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that no entirely new source code will be added to this release.
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@ -117,14 +116,14 @@ still be changes to documentation and data files, and to the code
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for test cases or utilities. New code may be added in a
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for test cases or utilities. New code may be added in a
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future release.
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future release.
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##### Internal Release Number
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### Internal Release Number
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An internal release number is the number that the development team
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An internal release number is the number that the development team
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gives each release. Internal release numbers typically count up
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gives each release. Internal release numbers typically count up
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logically, i.e., they do not skip numbers. They may have many parts:
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logically, i.e., they do not skip numbers. They may have many parts:
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e.g., major, minor, patch-level, build number, RC number.
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e.g., major, minor, patch-level, build number, RC number.
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##### External Release Number
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### External Release Number
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External release numbers are the numbers that users see. Often, they
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External release numbers are the numbers that users see. Often, they
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will be the same as the internal release number. That is especially
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will be the same as the internal release number. That is especially
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@ -137,49 +136,49 @@ of their client software because their competition had released
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version 8. Later, the competition used version "10 Optimized" rather
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version 8. Later, the competition used version "10 Optimized" rather
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than "10.1" or "11".
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than "10.1" or "11".
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##### Release Number
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### Release Number
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The term "release number" by itself refers to an
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The term "release number" by itself refers to an
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[external release number](#external_release_number). Users normally are not aware
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[external release number](#external_release_number). Users normally are not aware
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of the existence of any internal release numbers.
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of the existence of any internal release numbers.
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### Development Tool Terms
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## Development Tool Terms
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#### Version Control System
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### Version Control System
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::DEFINITION1
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::DEFINITION1
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|
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#### Commit Log Message
|
### Commit Log Message
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::DEFINITION1
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::DEFINITION1
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|
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#### Issue Tracker
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### Issue Tracker
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|
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::DEFINITION1
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::DEFINITION1
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#### Unit Testing Automation
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### Unit Testing Automation
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::DEFINITION1
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::DEFINITION1
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#### Automated Build System
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### Automated Build System
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::DEFINITION1
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::DEFINITION1
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#### Style Checker
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### Style Checker
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|
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::DEFINITION1
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::DEFINITION1
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#### Source Code Formatter (Pretty Printer)
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### Source Code Formatter (Pretty Printer)
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::DEFINITION1
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::DEFINITION1
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#### System Test Automation
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### System Test Automation
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::DEFINITION1
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::DEFINITION1
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### Requirements Terms
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## Requirements Terms
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#### Feature specification
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### Feature specification
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A feature specification focuses on one feature of a software product
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A feature specification focuses on one feature of a software product
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and completely describes how that feature can be used. It includes a
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and completely describes how that feature can be used. It includes a
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@ -188,7 +187,7 @@ output, and any constraints. Individual bullet items give precise
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details on all aspects of the feature. One feature may be used in
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details on all aspects of the feature. One feature may be used in
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many different ways as part of many different use cases.
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many different ways as part of many different use cases.
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#### Use case
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### Use case
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The main part of a use case is a set of steps that give an example
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The main part of a use case is a set of steps that give an example
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of how an [actor](#actor) can use the product to succeed at
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of how an [actor](#actor) can use the product to succeed at
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@ -196,144 +195,144 @@ a goal. These steps are called the "Main success scenario", and they
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include both user intentions and system responses. One use case may
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include both user intentions and system responses. One use case may
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show how the actor uses several features to accomplish a goal.
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show how the actor uses several features to accomplish a goal.
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#### Actor
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### Actor
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A user or an external system that uses the system being built.
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A user or an external system that uses the system being built.
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### Design Terms
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## Design Terms
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#### ::TERM2
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### ::TERM2
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::DEFINITION2
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::DEFINITION2
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### Design Goals Terms
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## Design Goals Terms
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#### Correctness
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### Correctness
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This design correctly matches the given requirements.
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This design correctly matches the given requirements.
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#### Feasibility
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### Feasibility
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|
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This design can be implemented and tested with the planned amount of
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This design can be implemented and tested with the planned amount of
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time and effort.
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time and effort.
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#### Understandability
|
### Understandability
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|
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Developers can understand this design and correctly implement it.
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Developers can understand this design and correctly implement it.
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#### Implementation phase guidance
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### Implementation phase guidance
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|
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This design divides the implementation into components or aspects
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This design divides the implementation into components or aspects
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that can correspond to reasonable implementation tasks.
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that can correspond to reasonable implementation tasks.
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#### Modularity
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### Modularity
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Concerns are clearly separated so that the impact of most design
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Concerns are clearly separated so that the impact of most design
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changes would be limited to only one or a few modules.
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changes would be limited to only one or a few modules.
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#### Extensibility
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### Extensibility
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New features or components can be easily added later.
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New features or components can be easily added later.
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#### Testability
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### Testability
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|
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It is easy to test components of this design independently, and
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It is easy to test components of this design independently, and
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information is available to help diagnose defects.
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information is available to help diagnose defects.
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#### Efficiency
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### Efficiency
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|
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The design enables the system to perform functions with an
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The design enables the system to perform functions with an
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acceptable amount of time, storage space, bandwidth, and
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acceptable amount of time, storage space, bandwidth, and
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other resources.
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other resources.
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#### Ease of integration
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### Ease of integration
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The components will work together.
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The components will work together.
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#### Capacity matching
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### Capacity matching
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The architecture deploys components onto machines that provide
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The architecture deploys components onto machines that provide
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needed resources with reasonable total expense.
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needed resources with reasonable total expense.
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#### Expressiveness
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### Expressiveness
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It allows for storage of all valid values and relationships
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It allows for storage of all valid values and relationships
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#### Ease of access
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### Ease of access
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Application code to access stored data is simple
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Application code to access stored data is simple
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#### Reliability
|
### Reliability
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|
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Stored data cannot easily be corrupted by defective code, concurrent
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Stored data cannot easily be corrupted by defective code, concurrent
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access, or unexpected process termination
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access, or unexpected process termination
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#### Data capacity
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### Data capacity
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|
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The system can store the amount of data needed.
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The system can store the amount of data needed.
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#### Data security
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### Data security
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|
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Protection of sensitive user and corporate data from unauthorized
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Protection of sensitive user and corporate data from unauthorized
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access or modification
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access or modification
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#### Performance
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### Performance
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Data can be accessed quickly
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Data can be accessed quickly
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#### Interoperability
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### Interoperability
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|
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The database or data files can be accessed and updated by other
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The database or data files can be accessed and updated by other
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applications
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applications
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#### Intrusion prevention
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### Intrusion prevention
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Prevent, e.g., hackers opening a command shell on our server.
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Prevent, e.g., hackers opening a command shell on our server.
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#### Abuse prevention
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### Abuse prevention
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||||||
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Prevention of abuse (e.g., using our system to send spam).
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Prevention of abuse (e.g., using our system to send spam).
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#### Auditability
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### Auditability
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All changes can be accounted for later.
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All changes can be accounted for later.
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|
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||||||
#### Understandability and learnability
|
### Understandability and learnability
|
||||||
|
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Users can reasonably be expected to understand the UI at
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Users can reasonably be expected to understand the UI at
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||||||
first sight. Users will be able to discover additional features
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first sight. Users will be able to discover additional features
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||||||
without aid from other users or documentation, and they will be able
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without aid from other users or documentation, and they will be able
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to recall what they have learned.
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to recall what they have learned.
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#### Task support and efficiency
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### Task support and efficiency
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||||||
|
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The UI is well matched to the users' tasks and it can be used with a
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The UI is well matched to the users' tasks and it can be used with a
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reasonable number of clicks and keystrokes.
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reasonable number of clicks and keystrokes.
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#### Safety
|
### Safety
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||||||
|
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||||||
Users are not likely to accidentally produce an undesired result
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Users are not likely to accidentally produce an undesired result
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(e.g., delete data, or send a half-finished email).
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(e.g., delete data, or send a half-finished email).
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|
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#### Consistency and familiarity
|
### Consistency and familiarity
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||||||
|
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||||||
Users can apply their knowledge of similar UIs or UI standards to
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Users can apply their knowledge of similar UIs or UI standards to
|
||||||
this system.
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this system.
|
||||||
|
|
||||||
### QA Terms
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## QA Terms
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||||||
|
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#### Bug
|
### Bug
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|
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_n._ **Deprecated** since 1991. See [defect](#defect).
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_n._ **Deprecated** since 1991. See [defect](#defect).
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#### Error
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### Error
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|
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||||||
_v._ A mistaken thought in the developer's mind. Often caused by
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_v._ A mistaken thought in the developer's mind. Often caused by
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miscommunication or bad assumptions. Errors can create
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miscommunication or bad assumptions. Errors can create
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||||||
[defects](#defect). E.g., a developer might erroneously think that
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[defects](#defect). E.g., a developer might erroneously think that
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the square root of -4 is -2.
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the square root of -4 is -2.
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#### Defect
|
### Defect
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|
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_n._ The result of the developer's [error](#error) embodied in the
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_n._ The result of the developer's [error](#error) embodied in the
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product source code, initial data, or documents. E.g., a square root
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product source code, initial data, or documents. E.g., a square root
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@ -341,7 +340,7 @@ function which allows negative numbers as arguments is defective.
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Defects can be removed by changing the source code, initial data,
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Defects can be removed by changing the source code, initial data,
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or document.
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or document.
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|
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#### Fault
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### Fault
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|
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_n._ The execution of defective code. E.g., if a certain input is
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_n._ The execution of defective code. E.g., if a certain input is
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||||||
provided to defective code, it may cause an exception, or go into an
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provided to defective code, it may cause an exception, or go into an
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@ -349,42 +348,42 @@ infinite loop, or store an incorrect value in an internal variable.
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A fault is not normally visible to users, only the
|
A fault is not normally visible to users, only the
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||||||
[failure](#failure) is visible.
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[failure](#failure) is visible.
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|
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#### Failure
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### Failure
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||||||
|
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_n._ The user-visible result of a [fault](#fault). E.g., an error
|
_n._ The user-visible result of a [fault](#fault). E.g., an error
|
||||||
message or an incorrect result. This is evidence that can be
|
message or an incorrect result. This is evidence that can be
|
||||||
reported in a defect report. Developers use failure evidence during
|
reported in a defect report. Developers use failure evidence during
|
||||||
debugging to eventually find and remove [defects](#defect).
|
debugging to eventually find and remove [defects](#defect).
|
||||||
|
|
||||||
### QA Goals Terms
|
## QA Goals Terms
|
||||||
|
|
||||||
#### Functionality > Correctness
|
### Functionality > Correctness
|
||||||
|
|
||||||
Correctness is the most basic quality goal. It means that, when
|
Correctness is the most basic quality goal. It means that, when
|
||||||
valid inputs are given and the system is in a valid state and under
|
valid inputs are given and the system is in a valid state and under
|
||||||
reasonable load, the system's behavior and results will be correct.
|
reasonable load, the system's behavior and results will be correct.
|
||||||
|
|
||||||
#### Functionality > Robustness
|
### Functionality > Robustness
|
||||||
|
|
||||||
Robustness is the system's ability to gracefully handle
|
Robustness is the system's ability to gracefully handle
|
||||||
invalid inputs. It should never be possible for any user input to
|
invalid inputs. It should never be possible for any user input to
|
||||||
crash the system or corrupt data, even if that user input is
|
crash the system or corrupt data, even if that user input is
|
||||||
abnormal, unexpected, or malicious.
|
abnormal, unexpected, or malicious.
|
||||||
|
|
||||||
#### Functionality > Accuracy
|
### Functionality > Accuracy
|
||||||
|
|
||||||
Accuracy refers to the mathematical precision of calculations done
|
Accuracy refers to the mathematical precision of calculations done
|
||||||
by the system. Any system that does numeric calculations must
|
by the system. Any system that does numeric calculations must
|
||||||
consider accuracy, e.g., financial or scientific applications.
|
consider accuracy, e.g., financial or scientific applications.
|
||||||
|
|
||||||
#### Functionality > Compatibility
|
### Functionality > Compatibility
|
||||||
|
|
||||||
Systems that claim to follow standards or claim compatibility with
|
Systems that claim to follow standards or claim compatibility with
|
||||||
existing systems must adhere to the relevant file formats,
|
existing systems must adhere to the relevant file formats,
|
||||||
protocols, and APIs. The relevant standards are linked at the top of
|
protocols, and APIs. The relevant standards are linked at the top of
|
||||||
this document.
|
this document.
|
||||||
|
|
||||||
#### Functionality > Factual correctness
|
### Functionality > Factual correctness
|
||||||
|
|
||||||
Is the data in the system a true representation of the real world?
|
Is the data in the system a true representation of the real world?
|
||||||
Any system that contains initial data or gathers data about the real
|
Any system that contains initial data or gathers data about the real
|
||||||
@ -393,7 +392,7 @@ D-DIAGRAM
|
|||||||
D-DIAGRAM
|
D-DIAGRAM
|
||||||
D-DIAGRAM
|
D-DIAGRAM
|
||||||
|
|
||||||
#### Usability > Understandability and Readability
|
### Usability > Understandability and Readability
|
||||||
|
|
||||||
Users need to understand the system to use it. The basic metaphor
|
Users need to understand the system to use it. The basic metaphor
|
||||||
should be understandable and appropriate to user tasks. Some defects
|
should be understandable and appropriate to user tasks. Some defects
|
||||||
@ -401,7 +400,7 @@ in understandability include unclear metaphors, poor or hard-to-see
|
|||||||
labels, lack of feedback to confirm the effects of user actions, and
|
labels, lack of feedback to confirm the effects of user actions, and
|
||||||
missing or inadequate on-line help.
|
missing or inadequate on-line help.
|
||||||
|
|
||||||
#### Usability > Learnability and Memorability
|
### Usability > Learnability and Memorability
|
||||||
|
|
||||||
Every user interface contains some details that users will need to
|
Every user interface contains some details that users will need to
|
||||||
learn and remember. E.g., Alt-F to open the "File" menu. UI cues and
|
learn and remember. E.g., Alt-F to open the "File" menu. UI cues and
|
||||||
@ -409,7 +408,7 @@ rules can make these details easier to learn and remember. E.g., the
|
|||||||
"F" is underlined and, as a rule, the first letter is usually the
|
"F" is underlined and, as a rule, the first letter is usually the
|
||||||
accelerator key.
|
accelerator key.
|
||||||
|
|
||||||
#### Usability > Task support
|
### Usability > Task support
|
||||||
|
|
||||||
This is the quality of match between user tasks and the system's UI.
|
This is the quality of match between user tasks and the system's UI.
|
||||||
Task support defects are cases where the system forces the user to
|
Task support defects are cases where the system forces the user to
|
||||||
@ -418,7 +417,7 @@ no support for a difficult step in a task. E.g., must the user
|
|||||||
invent an 8-character filename for their "Christmas card list"?
|
invent an 8-character filename for their "Christmas card list"?
|
||||||
E.g., must users total their own tax deductions?
|
E.g., must users total their own tax deductions?
|
||||||
|
|
||||||
#### Usability > Efficiency
|
### Usability > Efficiency
|
||||||
|
|
||||||
Users should be able to accomplish common tasks with
|
Users should be able to accomplish common tasks with
|
||||||
reasonable effort. Common tasks should be possible with only one or
|
reasonable effort. Common tasks should be possible with only one or
|
||||||
@ -426,14 +425,14 @@ two steps. The difficulty of each step should also be considered.
|
|||||||
E.g., does the user have to remember a long code number or click on
|
E.g., does the user have to remember a long code number or click on
|
||||||
a very small button?
|
a very small button?
|
||||||
|
|
||||||
#### Usability > Safety
|
### Usability > Safety
|
||||||
|
|
||||||
Humans are error-prone, but the negative effects of common errors
|
Humans are error-prone, but the negative effects of common errors
|
||||||
should be limited. E.g., users should realize that a given command
|
should be limited. E.g., users should realize that a given command
|
||||||
will delete data, and be asked to confirm their intent or have the
|
will delete data, and be asked to confirm their intent or have the
|
||||||
option to undo.
|
option to undo.
|
||||||
|
|
||||||
#### Usability > Consistency and Familiarity
|
### Usability > Consistency and Familiarity
|
||||||
|
|
||||||
Users should be able to apply their past experience from other
|
Users should be able to apply their past experience from other
|
||||||
similar systems. This means that user interface standards should be
|
similar systems. This means that user interface standards should be
|
||||||
@ -442,23 +441,16 @@ Also, UI elements that appear in several parts of the UI should be
|
|||||||
used consistently, unless another UI quality takes priority. E.g.,
|
used consistently, unless another UI quality takes priority. E.g.,
|
||||||
if most currency entry fields do not require a dollar-sign, then one
|
if most currency entry fields do not require a dollar-sign, then one
|
||||||
that does demand it is a consistency defect, unless there is a real
|
that does demand it is a consistency defect, unless there is a real
|
||||||
chance that the user is dealing with anoD-DIAGRAM
|
chance that the user is dealing with another currency on that step
|
||||||
D-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
in his/her task.
|
in his/her task.
|
||||||
|
|
||||||
#### Usability > Subjective satisfactionD-DIAGRAM
|
### Usability > Subjective satisfaction
|
||||||
|
|
||||||
D-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
|
|
||||||
Users should feel generally satisfied with the UI. This is a
|
Users should feel generally satisfied with the UI. This is a
|
||||||
subjective quality that sums up the other user interface qualities
|
subjective quality that sums up the other user interface qualities
|
||||||
as well as aesthetics.
|
as well as aesthetics.
|
||||||
|
|
||||||
#### Security
|
### Security
|
||||||
|
|
||||||
The system should allow usage only by authorized users, and restrict
|
The system should allow usage only by authorized users, and restrict
|
||||||
usage based on permissions. The system should not allow users to
|
usage based on permissions. The system should not allow users to
|
||||||
@ -466,48 +458,31 @@ side-step security rule or exploit security holes. E.g., all user
|
|||||||
input should be validated and any malicious input should
|
input should be validated and any malicious input should
|
||||||
be rejected.
|
be rejected.
|
||||||
|
|
||||||
#### Reliability > Consistency under load
|
### Reliability > Consistency under load
|
||||||
|
|
||||||
D-DIAGRAM
|
Every system has some capacity limits. What happens when those
|
||||||
D-DIAGRAM
|
limits are exceeded? The system should never lose or corrupt data.
|
||||||
D-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
|
|
||||||
#### Reliability > Consistency under concurrency
|
### Reliability > Consistency under concurrency
|
||||||
|
|
||||||
Systems that allow concurrent access by multiple users, or that use
|
Systems that allow concurrent access by multiple users, or that use
|
||||||
concurrency internally, should be free of race conditions
|
concurrency internally, should be free of race conditions
|
||||||
and deadlock.
|
and deadlock.
|
||||||
|
|
||||||
#### Reliability > Availability under load
|
### Reliability > Availability under load
|
||||||
|
|
||||||
Every system has some capacity limits. What happens when those
|
Every system has some capacity limits. What happens when those
|
||||||
limits are exceeded? The system should continue to service those
|
limits are exceeded? The system should continue to service those
|
||||||
requests that it is capable of handling. It should not crash or sD-DIAGRAM
|
requests that it is capable of handling. It should not crash or stop
|
||||||
D-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
processing all requests.
|
processing all requests.
|
||||||
|
|
||||||
#### Reliability > Longevity
|
### Reliability > Longevity
|
||||||
|
|
||||||
The system should continue to operate as long as it is needed. ItD-DIAGRAM
|
The system should continue to operate as long as it is needed. It
|
||||||
D-DIAGRAM
|
should not gradually use up a limited resource. Example longevity
|
||||||
D-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
should not gradually use up a limited resource. Example longevityD-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
D-DIAGRAM
|
|
||||||
defects include memory leaks or filling the disk with log files.
|
defects include memory leaks or filling the disk with log files.
|
||||||
|
|
||||||
#### Efficiency
|
### Scalability
|
||||||
|
|
||||||
The system's operations should execute quickly, with reasonable use
|
|
||||||
of machine and network resources. E.g., if one user does one
|
|
||||||
operation, it should execute efficiently.
|
|
||||||
|
|
||||||
#### Scalability
|
|
||||||
|
|
||||||
Scalability is a general quality that holds when the system
|
Scalability is a general quality that holds when the system
|
||||||
continues to satisfy its requirements when various usage parameters
|
continues to satisfy its requirements when various usage parameters
|
||||||
@ -515,13 +490,13 @@ are increased. E.g., a file server might be scalable to a high
|
|||||||
number of users, or to very large files or very high capacity disks.
|
number of users, or to very large files or very high capacity disks.
|
||||||
Several specific scalability goals are listed below.
|
Several specific scalability goals are listed below.
|
||||||
|
|
||||||
#### Scalability > Performance under load
|
### Scalability > Performance under load
|
||||||
|
|
||||||
This is a specific type of scalability goal dealing with the
|
This is a specific type of scalability goal dealing with the
|
||||||
performance of the system at times when it is servicing many
|
performance of the system at times when it is servicing many
|
||||||
requests from many users.
|
requests from many users.
|
||||||
|
|
||||||
#### Scalability > Large data volume
|
### Scalability > Large data volume
|
||||||
|
|
||||||
This is a specific type of scalability goal dealing with the ability
|
This is a specific type of scalability goal dealing with the ability
|
||||||
for the system to handle large data sets. Operations should continue
|
for the system to handle large data sets. Operations should continue
|
||||||
@ -529,7 +504,7 @@ to be correct and efficient as data set size increases. Furthermore,
|
|||||||
the user interface should still be usable as the data presented to
|
the user interface should still be usable as the data presented to
|
||||||
users increases in length.
|
users increases in length.
|
||||||
|
|
||||||
#### Operability
|
### Operability
|
||||||
|
|
||||||
The long-term needs of system administrators should be
|
The long-term needs of system administrators should be
|
||||||
reliably supported. E.g., is the system easy to install? Can the
|
reliably supported. E.g., is the system easy to install? Can the
|
||||||
@ -537,16 +512,16 @@ administrator recover from a crash? Is there sufficient log output
|
|||||||
to diagnose problems in the field? Can the system's data be backed
|
to diagnose problems in the field? Can the system's data be backed
|
||||||
up without downtime? Can the system be upgraded practically?
|
up without downtime? Can the system be upgraded practically?
|
||||||
|
|
||||||
#### Maintainability > Understandability
|
### Maintainability > Understandability
|
||||||
|
|
||||||
Will it be easy for (future) developers to understand how the system
|
Will it be easy for (future) developers to understand how the system
|
||||||
works?
|
works?
|
||||||
|
|
||||||
#### Maintainability > Evolvability
|
### Maintainability > Evolvability
|
||||||
|
|
||||||
Can the system easily be modified and extended over time?
|
Can the system easily be modified and extended over time?
|
||||||
|
|
||||||
#### Maintainability > Testability
|
### Maintainability > Testability
|
||||||
|
|
||||||
Can the system easily be tested? Do the requirements precisely
|
Can the system easily be tested? Do the requirements precisely
|
||||||
specify possible inputs and the desired results? Can the system be
|
specify possible inputs and the desired results? Can the system be
|
||||||
@ -554,7 +529,7 @@ tested in parts? When failures are observed, can they be traced back
|
|||||||
to defects in specific components (i.e., debugging)? Is testing
|
to defects in specific components (i.e., debugging)? Is testing
|
||||||
practical with the available testing tools?
|
practical with the available testing tools?
|
||||||
|
|
||||||
### Additional Standard Terms
|
## Additional Standard Terms
|
||||||
|
|
||||||
For additional standard terms, see the following reference sites:
|
For additional standard terms, see the following reference sites:
|
||||||
|
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user