2018-08-14 12:48:17 +00:00
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<!-- Markdown content here -->
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2018-08-14 15:55:05 +00:00
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# [Design](Design) > Scalability
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2018-08-14 12:48:17 +00:00
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---
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##### Project:
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::PROJECTNAME
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##### Internal Release Number:
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::X.Y.Z
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##### Related Documents:
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- ::LINKS TO RELEVANT STANDARDS
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- ::LINKS TO OTHER DOCUMENTS
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---
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### Overview
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*TODO: Briefly describe the approach to scalability. Rank your
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scalability goals for this design.*
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::2-4 SENTENCES.
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### Relevant parameters
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| Parameter | Description |
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|---------------------|-----------------------------------------------------------------------------------------|
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| ::registered\_users | ::Number of registered users in the database. |
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| ::concurrent\_users | ::Number of users logged into the system at a given time. |
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| ::map\_size | ::Number of game squares in the playing area. E.g., a 10 x 25 map would be 250 squares. |
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| ::game\_pieces | ::Number of game pieces on the playing area at a given time. |
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### Scalability Mechanisms
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2018-08-14 15:55:05 +00:00
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2018-08-14 12:48:17 +00:00
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### Performance Goals and Estimates
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| Action | Goal | Time Formula | Description |
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|----------------|--------------|-------------------------------|-----------------------------------------------------------------------------|
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| ::login | ::1 second | ::O(Log(registered\_users)) | ::Time that it takes to look up a user by their login name in the database. |
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| ::display\_map | ::1/5 second | ::O(map\_size + game\_pieces) | ::Time that it takes to redraw the game map and all game pieces. |
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### System Scalability Checklist
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How well do these mechanisms support the achievement of your goals?
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::2-4 SENTENCES
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#### Have these scalability mechanisms been communicated to the development team and other stakeholders?
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::Yes, everyone understands. Feedback is welcome.
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::No, this is a risk that is noted in the
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[Risk Management](plan.html#risks) section.
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