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+<topbar style="display:none;">
+    <item><a href="index.html">Overview</a></item>
+    <item><a href="plan.html">Project Plan</a></item>
+    <item><a href="index-all.html">Workflows</a></item>
+    <menu name="Themes"><item><a id="settheme"><b>Current</b></a></item></menu>
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+<!-- Markdown content here -->
+
+# [Design](design.html)&nbsp;&gt;&nbsp;Scalability
+---
+
+##### Project:
+::PROJECTNAME
+
+##### Internal Release Number:
+::X.Y.Z
+
+##### Related Documents:
+- ::LINKS TO RELEVANT STANDARDS
+- ::LINKS TO OTHER DOCUMENTS
+---
+
+### Overview
+
+*TODO: Briefly describe the approach to scalability. Rank your
+scalability goals for this design.*
+
+::2-4 SENTENCES.
+
+### Relevant parameters
+
+| Parameter           | Description                                                                             |
+|---------------------|-----------------------------------------------------------------------------------------|
+| ::registered\_users | ::Number of registered users in the database.                                           |
+| ::concurrent\_users | ::Number of users logged into the system at a given time.                               |
+| ::map\_size         | ::Number of game squares in the playing area. E.g., a 10 x 25 map would be 250 squares. |
+| ::game\_pieces      | ::Number of game pieces on the playing area at a given time.                            |
+
+### Scalability Mechanisms
+&nbsp;
+
+### Performance Goals and Estimates
+
+| Action         | Goal         | Time Formula                  | Description                                                                 |
+|----------------|--------------|-------------------------------|-----------------------------------------------------------------------------|
+| ::login        | ::1 second   | ::O(Log(registered\_users))   | ::Time that it takes to look up a user by their login name in the database. |
+| ::display\_map | ::1/5 second | ::O(map\_size + game\_pieces) | ::Time that it takes to redraw the game map and all game pieces.            |
+
+### System Scalability Checklist
+
+How well do these mechanisms support the achievement of your goals?
+
+::2-4 SENTENCES
+
+#### Have these scalability mechanisms been communicated to the development team and other stakeholders?
+
+::Yes, everyone understands. Feedback is welcome.
+
+::No, this is a risk that is noted in the 
+[Risk Management](plan.html#risks) section.
+
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