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<table class="wysiwyg-macro" data-macro-name="unmigrated-inline-wiki-markup" data-macro-parameters="atlassian-macro-output-type=BLOCK" style="background-image: url(/plugins/servlet/confluence/placeholder/macro-heading?definition=e3VubWlncmF0ZWQtaW5saW5lLXdpa2ktbWFya3VwOmF0bGFzc2lhbi1tYWNyby1vdXRwdXQtdHlwZT1CTE9DS30&locale=en_GB&version=2); background-repeat: no-repeat;" data-macro-body-type="PLAIN_TEXT"><tr><td class="wysiwyg-macro-body"><pre>{iframe:src=http://update.sonarsource.org/plugins/sigmm.html|width=700|height=250|frameborder=0} Your browser does not support iframes. {iframe}</pre></td></tr></table><h2>Description / Features</h2><p>This plugin is an implementation of the <a href="http://www.sig.nl/en">Software Improvement Group</a>(SIG) Maintainability Model.</p><p>The model is a 2 steps approach: calculate base indicators and then combine them to get higher level ones.<br /> Every indicator results to a 5-levels ranking from -- (very bad)to ++ (very good).</p><p>The first step is to evaluate base metrics.</p><p><strong>Volume</strong>: based on the number of lines of code</p><table class="confluenceTable"><tbody><tr><th class="confluenceTh"><p>Rank</p></th><th class="confluenceTh"><p>LOC</p></th></tr><tr><td class="confluenceTd"><p>--</p></td><td class="confluenceTd"><p>> 1310000</p></td></tr><tr><td class="confluenceTd"><p>-</p></td><td class="confluenceTd"><p>> 655000</p></td></tr><tr><td class="confluenceTd"><p>0</p></td><td class="confluenceTd"><p>> 246000</p></td></tr><tr><td class="confluenceTd"><p>+</p></td><td class="confluenceTd"><p>> 66000</p></td></tr><tr><td class="confluenceTd"><p>++</p></td><td class="confluenceTd"><p>> 0</p></td></tr></tbody></table><p><strong>Duplications</strong>: based on the density of duplications</p><table class="confluenceTable"><tbody><tr><th class="confluenceTh"><p>Rank</p></th><th class="confluenceTh"><p>Duplication</p></th></tr><tr><td class="confluenceTd"><p>--</p></td><td class="confluenceTd"><p>> 20%</p></td></tr><tr><td class="confluenceTd"><p>-</p></td><td class="confluenceTd"><p>> 10%</p></td></tr><tr><td class="confluenceTd"><p>0</p></td><td class="confluenceTd"><p>> 5%</p></td></tr><tr><td class="confluenceTd"><p>+</p></td><td class="confluenceTd"><p>> 3%</p></td></tr><tr><td class="confluenceTd"><p>++</p></td><td class="confluenceTd"><p>> 0%</p></td></tr></tbody></table><p><strong>Unit tests</strong>: based on the coverage of the application by unit tests</p><table class="confluenceTable"><tbody><tr><th class="confluenceTh"><p>Rank</p></th><th class="confluenceTh"><p>Coverage</p></th></tr><tr><td class="confluenceTd"><p>++</p></td><td class="confluenceTd"><p>> 95%</p></td></tr><tr><td class="confluenceTd"><p>+</p></td><td class="confluenceTd"><p>> 80%</p></td></tr><tr><td class="confluenceTd"><p>0</p></td><td class="confluenceTd"><p>> 60%</p></td></tr><tr><td class="confluenceTd"><p>-</p></td><td class="confluenceTd"><p>> 20%</p></td></tr><tr><td class="confluenceTd"><p>--</p></td><td class="confluenceTd"><p>> 0%</p></td></tr></tbody></table><p><strong>Complexity</strong>: based on the cyclomatic complexity of methods<br /> A first pass consists in determining the percentage of LOC belonging to methods that are in a certain range of complexity</p><table class="confluenceTable"><tbody><tr><th class="confluenceTh"><p>Eval</p></th><th class="confluenceTh"><p>Complexity</p></th></tr><tr><td class="confluenceTd"><p>Very high</p></td><td class="confluenceTd"><p>> 50</p></td></tr><tr><td class="confluenceTd"><p>High</p></td><td class="confluenceTd"><p>> 20</p></td></tr><tr><td class="confluenceTd"><p>Medium</p></td><td class="confluenceTd"><p>> 10</p></td></tr><tr><td class="confluenceTd"><p>Low</p></td><td class="confluenceTd"><p>> 0</p></td></tr></tbody></table><p>Then based on the distribution, we use the following table to evaluate the rank :</p><table class="confluenceTable"><tbody><tr><th class="confluenceTh"><p>Rank</p></th><th class="confluenceTh"><p>Medium</p></th><th class="confluenceTh"><p>High</p></th><th class="confluenceTh"><p>Very High</p></th></tr><tr><td class="confluenceTd"><p>++</p></td><td class="confluenceTd"><p>< 25%</p></td><td class="confluenceTd"><p>< 0%</p></td><td class="confluenceTd"><p>< 0%</p></td></tr><tr><td class="confluenceTd"><p>+</p></td><td class="confluenceTd"><p>< 30%</p></td><td class="confluenceTd"><p>< 5%</p></td><td class="confluenceTd"><p>< 0%</p></td></tr><tr><td class="confluenceTd"><p>0</p></td><td class="confluenceTd"><p>< 40%</p></td><td class="confluenceTd"><p>< 10%</p></td><td class="confluenceTd"><p>< 0%</p></td></tr><tr><td class="confluenceTd"><p>-</p></td><td class="confluenceTd"><p>< 50%</p></td><td class="confluenceTd"><p>< 15%</p></td><td class="confluenceTd"><p>< 5%</p></td></tr></tbody></table><p>Rank is -- otherwise <br class="atl-forced-newline" /> <br class="atl-forced-newline" /> <strong>Unit size</strong>: based on the lines of code of methods<br /> A first pass consists in determining the percentage of LOC belonging to methods that are in a certain range of LOCS</p><table class="confluenceTable"><tbody><tr><th class="confluenceTh"><p>Eval</p></th><th class="confluenceTh"><p>LOCs</p></th></tr><tr><td class="confluenceTd"><p>Very high</p></td><td class="confluenceTd"><p>> 100</p></td></tr><tr><td class="confluenceTd"><p>High</p></td><td class="confluenceTd"><p>> 50</p></td></tr><tr><td class="confluenceTd"><p>Medium</p></td><td class="confluenceTd"><p>> 10</p></td></tr><tr><td class="confluenceTd"><p>Low</p></td><td class="confluenceTd"><p>> 0</p></td></tr></tbody></table><p>Then based on the distribution, we use the following table to evaluate the rank :</p><table class="confluenceTable"><tbody><tr><th class="confluenceTh"><p>Rank</p></th><th class="confluenceTh"><p>Medium</p></th><th class="confluenceTh"><p>High</p></th><th class="confluenceTh"><p>Very High</p></th></tr><tr><td class="confluenceTd"><p>++</p></td><td class="confluenceTd"><p>< 25%</p></td><td class="confluenceTd"><p>< 0%</p></td><td class="confluenceTd"><p>< 0%</p></td></tr><tr><td class="confluenceTd"><p>+</p></td><td class="confluenceTd"><p>< 30%</p></td><td class="confluenceTd"><p>< 5%</p></td><td class="confluenceTd"><p>< 0%</p></td></tr><tr><td class="confluenceTd"><p>0</p></td><td class="confluenceTd"><p>< 40%</p></td><td class="confluenceTd"><p>< 10%</p></td><td class="confluenceTd"><p>< 0%</p></td></tr><tr><td class="confluenceTd"><p>-</p></td><td class="confluenceTd"><p>< 50%</p></td><td class="confluenceTd"><p>< 15%</p></td><td class="confluenceTd"><p>< 5%</p></td></tr></tbody></table><p>Rank is -- otherwise</p><p>The second step is to combine them, by doing a simple average, using the following mapping table :</p><table class="confluenceTable"><tbody><tr><th class="confluenceTh"><p> </p></th><th class="confluenceTh"><p>Volume</p></th><th class="confluenceTh"><p>Complexity</p></th><th class="confluenceTh"><p>Duplications</p></th><th class="confluenceTh"><p>Unit size</p></th><th class="confluenceTh"><p>Unit tests</p></th></tr><tr><td class="confluenceTd"><p>analysability</p></td><td class="confluenceTd"><p><img class="emoticon emoticon-tick" data-emoticon-name="tick" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/check.png" alt="(tick)" title="(tick)" /></p></td><td class="confluenceTd"><p> </p></td><td class="confluenceTd"><p><img class="emoticon emoticon-tick" data-emoticon-name="tick" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/check.png" alt="(tick)" title="(tick)" /></p></td><td class="confluenceTd"><p><img class="emoticon emoticon-tick" data-emoticon-name="tick" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/check.png" alt="(tick)" title="(tick)" /></p></td><td class="confluenceTd"><p><img class="emoticon emoticon-tick" data-emoticon-name="tick" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/check.png" alt="(tick)" title="(tick)" /></p></td></tr><tr><td class="confluenceTd"><p>changeability</p></td><td class="confluenceTd"><p> </p></td><td class="confluenceTd"><p><img class="emoticon emoticon-tick" data-emoticon-name="tick" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/check.png" alt="(tick)" title="(tick)" /></p></td><td class="confluenceTd"><p><img class="emoticon emoticon-tick" data-emoticon-name="tick" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/check.png" alt="(tick)" title="(tick)" /></p></td><td class="confluenceTd"><p> </p></td><td class="confluenceTd"><p> </p></td></tr><tr><td class="confluenceTd"><p>stability</p></td><td class="confluenceTd"><p> </p></td><td class="confluenceTd"><p> </p></td><td class="confluenceTd"><p> </p></td><td class="confluenceTd"><p> </p></td><td class="confluenceTd"><p><img class="emoticon emoticon-tick" data-emoticon-name="tick" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/check.png" alt="(tick)" title="(tick)" /></p></td></tr><tr><td class="confluenceTd"><p>testability</p></td><td class="confluenceTd"><p> </p></td><td class="confluenceTd"><p><img class="emoticon emoticon-tick" data-emoticon-name="tick" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/check.png" alt="(tick)" title="(tick)" /></p></td><td class="confluenceTd"><p> </p></td><td class="confluenceTd"><p><img class="emoticon emoticon-tick" data-emoticon-name="tick" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/check.png" alt="(tick)" title="(tick)" /></p></td><td class="confluenceTd"><p><img class="emoticon emoticon-tick" data-emoticon-name="tick" border="0" src="/s/en_GB/3278/15/_/images/icons/emoticons/check.png" alt="(tick)" title="(tick)" /></p></td></tr></tbody></table><p>and therefore obtain 4 advanced indicators representing the 4 axes of maintainability of a software.</p><p>Optionally, the 4 indicators can be combined by doing a simple average to give the maintainability ranking.</p><p><img class="confluence-embedded-image" src="/download/attachments/231080092/spider.jpg?version=1&modificationDate=1369315819367" data-image-src="/download/attachments/231080092/spider.jpg?version=1&modificationDate=1369315819367" data-linked-resource-id="231375529" data-linked-resource-type="attachment" data-linked-resource-default-alias="spider.jpg" data-base-url="http://docs.codehaus.org" data-linked-resource-container-id="231080092" title="null > spider.jpg"></p><p>It is to be noted that the color of the spider represents the actual combined value, from RED = -- to GREEN = ++</p><h2>Usage & Installation</h2><p>1. Copy the jar into /extensions/plugins/ directory<br /> 2. Restart Sonar Web server<br /> 3. Launch a new quality analysis</p><h2>Changelog</h2><p><img class="editor-inline-macro" src="/plugins/servlet/confluence/placeholder/macro?definition=e2ppcmFpc3N1ZXM6YW5vbnltb3VzPXRydWV8dGl0bGU9U0lHTU0gMS4wLjF8aGVpZ2h0PTUwfHdpZHRoPTk1MHxjb2x1bW5zPXR5cGU7a2V5O3N1bW1hcnk7cHJpb3JpdHk7c3RhdHVzO3Jlc29sdXRpb258dXJsPWh0dHA6Ly9qaXJhLmNvZGVoYXVzLm9yZy9zci9qaXJhLmlzc3Vldmlld3M6c2VhcmNocmVxdWVzdC14bWwvdGVtcC9TZWFyY2hSZXF1ZXN0LnhtbD9maXhmb3I9MTcyMDQmcGlkPTExOTExJnNvcnRlci9maWVsZD1pc3N1ZWtleSZzb3J0ZXIvb3JkZXI9REVTQyZ0ZW1wTWF4PTEwMDB9&locale=en_GB&version=2" data-macro-name="jiraissues" data-macro-parameters="anonymous=true|columns=type;key;summary;priority;status;resolution|height=50|title=SIGMM 1.0.1|url=http://jira.codehaus.org/sr/jira.issueviews:searchrequest-xml/temp/SearchRequest.xml?fixfor\=17204&pid\=11911&sorter/field\=issuekey&sorter/order\=DESC&tempMax\=1000|width=950"></p><p> </p><p><img class="editor-inline-macro" src="/plugins/servlet/confluence/placeholder/macro?definition=e2ppcmFpc3N1ZXM6YW5vbnltb3VzPXRydWV8dGl0bGU9U0lHTU0gMS4wfGhlaWdodD01MHx3aWR0aD05NTB8Y29sdW1ucz10eXBlO2tleTtzdW1tYXJ5O3ByaW9yaXR5O3N0YXR1cztyZXNvbHV0aW9ufHVybD1odHRwOi8vamlyYS5jb2RlaGF1cy5vcmcvc3IvamlyYS5pc3N1ZXZpZXdzOnNlYXJjaHJlcXVlc3QteG1sL3RlbXAvU2VhcmNoUmVxdWVzdC54bWw_Zml4Zm9yPTE2OTIxJnBpZD0xMTkxMSZzb3J0ZXIvZmllbGQ9aXNzdWVrZXkmc29ydGVyL29yZGVyPURFU0MmdGVtcE1heD0xMDAwfQ&locale=en_GB&version=2" data-macro-name="jiraissues" data-macro-parameters="anonymous=true|columns=type;key;summary;priority;status;resolution|height=50|title=SIGMM 1.0|url=http://jira.codehaus.org/sr/jira.issueviews:searchrequest-xml/temp/SearchRequest.xml?fixfor\=16921&pid\=11911&sorter/field\=issuekey&sorter/order\=DESC&tempMax\=1000|width=950"></p><p> </p><p><img class="editor-inline-macro" src="/plugins/servlet/confluence/placeholder/macro?definition=e2ppcmFpc3N1ZXM6YW5vbnltb3VzPXRydWV8dGl0bGU9U0lHTU0gMC4zLjF8aGVpZ2h0PTUwfHdpZHRoPTk1MHxjb2x1bW5zPXR5cGU7a2V5O3N1bW1hcnk7cHJpb3JpdHk7c3RhdHVzO3Jlc29sdXRpb258dXJsPWh0dHA6Ly9qaXJhLmNvZGVoYXVzLm9yZy9zci9qaXJhLmlzc3Vldmlld3M6c2VhcmNocmVxdWVzdC14bWwvdGVtcC9TZWFyY2hSZXF1ZXN0LnhtbD9maXhmb3I9MTYzMTEmcGlkPTExOTExJnNvcnRlci9maWVsZD1pc3N1ZWtleSZzb3J0ZXIvb3JkZXI9REVTQyZ0ZW1wTWF4PTEwMDB9&locale=en_GB&version=2" data-macro-name="jiraissues" data-macro-parameters="anonymous=true|columns=type;key;summary;priority;status;resolution|height=50|title=SIGMM 0.3.1|url=http://jira.codehaus.org/sr/jira.issueviews:searchrequest-xml/temp/SearchRequest.xml?fixfor\=16311&pid\=11911&sorter/field\=issuekey&sorter/order\=DESC&tempMax\=1000|width=950"></p><p> </p><p><img class="editor-inline-macro" src="/plugins/servlet/confluence/placeholder/macro?definition=e2ppcmFpc3N1ZXM6YW5vbnltb3VzPXRydWV8dGl0bGU9U0lHTU0gMC4zfGhlaWdodD03MHx3aWR0aD05NTB8Y29sdW1ucz10eXBlO2tleTtzdW1tYXJ5O3ByaW9yaXR5O3N0YXR1cztyZXNvbHV0aW9ufHVybD1odHRwOi8vamlyYS5jb2RlaGF1cy5vcmcvc3IvamlyYS5pc3N1ZXZpZXdzOnNlYXJjaHJlcXVlc3QteG1sL3RlbXAvU2VhcmNoUmVxdWVzdC54bWw_Zml4Zm9yPTE2MjE5JnBpZD0xMTkxMSZzb3J0ZXIvZmllbGQ9aXNzdWVrZXkmc29ydGVyL29yZGVyPURFU0MmdGVtcE1heD0xMDAwfQ&locale=en_GB&version=2" data-macro-name="jiraissues" data-macro-parameters="anonymous=true|columns=type;key;summary;priority;status;resolution|height=70|title=SIGMM 0.3|url=http://jira.codehaus.org/sr/jira.issueviews:searchrequest-xml/temp/SearchRequest.xml?fixfor\=16219&pid\=11911&sorter/field\=issuekey&sorter/order\=DESC&tempMax\=1000|width=950"></p><p> </p><p><img class="editor-inline-macro" src="/plugins/servlet/confluence/placeholder/macro?definition=e2ppcmFpc3N1ZXM6YW5vbnltb3VzPXRydWV8dGl0bGU9U0lHTU0gMC4yfGhlaWdodD05MHx3aWR0aD05NTB8Y29sdW1ucz10eXBlO2tleTtzdW1tYXJ5O3ByaW9yaXR5O3N0YXR1cztyZXNvbHV0aW9ufHVybD1odHRwOi8vamlyYS5jb2RlaGF1cy5vcmcvc3IvamlyYS5pc3N1ZXZpZXdzOnNlYXJjaHJlcXVlc3QteG1sL3RlbXAvU2VhcmNoUmVxdWVzdC54bWw_Zml4Zm9yPTE2MDE1JnBpZD0xMTkxMSZzb3J0ZXIvZmllbGQ9aXNzdWVrZXkmc29ydGVyL29yZGVyPURFU0MmdGVtcE1heD0xMDAwfQ&locale=en_GB&version=2" data-macro-name="jiraissues" data-macro-parameters="anonymous=true|columns=type;key;summary;priority;status;resolution|height=90|title=SIGMM 0.2|url=http://jira.codehaus.org/sr/jira.issueviews:searchrequest-xml/temp/SearchRequest.xml?fixfor\=16015&pid\=11911&sorter/field\=issuekey&sorter/order\=DESC&tempMax\=1000|width=950"></p><p> </p><p><img class="editor-inline-macro" src="/plugins/servlet/confluence/placeholder/macro?definition=e2ppcmFpc3N1ZXM6YW5vbnltb3VzPXRydWV8dGl0bGU9U0lHTU0gMC4xfGhlaWdodD0xNTB8d2lkdGg9OTUwfGNvbHVtbnM9dHlwZTtrZXk7c3VtbWFyeTtwcmlvcml0eTtzdGF0dXM7cmVzb2x1dGlvbnx1cmw9aHR0cDovL2ppcmEuY29kZWhhdXMub3JnL3NyL2ppcmEuaXNzdWV2aWV3czpzZWFyY2hyZXF1ZXN0LXhtbC90ZW1wL1NlYXJjaFJlcXVlc3QueG1sP2ZpeGZvcj0xNTUwOCZwaWQ9MTE5MTEmc29ydGVyL2ZpZWxkPWlzc3Vla2V5JnNvcnRlci9vcmRlcj1ERVNDJnRlbXBNYXg9MTAwMH0&locale=en_GB&version=2" data-macro-name="jiraissues" data-macro-parameters="anonymous=true|columns=type;key;summary;priority;status;resolution|height=150|title=SIGMM 0.1|url=http://jira.codehaus.org/sr/jira.issueviews:searchrequest-xml/temp/SearchRequest.xml?fixfor\=15508&pid\=11911&sorter/field\=issuekey&sorter/order\=DESC&tempMax\=1000|width=950"></p>
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