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<div id="toctitle">Eclipse CommaSuite</div>
<ul class="sectlevel1"><li><a style="" href="javascript:navigatePage('../index.html')">Home</a></li><li><a style="" href="javascript:navigatePage('../site/download.html')">Download</a></li><li><a style="" href="javascript:navigatePage('../site/developers.html')">Developers</a></li><li><a style="" href="javascript:navigatePage('../site/publications.html')">Publications</a></li><li><a style="" href="javascript:navigatePage('../user_guide.html')">User guide</a><ul class="sectlevel2"><li><a style="" href="javascript:navigatePage('../overview/intro.html')">Language overview</a><ul class="sectlevel3"><li><a style="" href="javascript:navigatePage('../overview/gettingstarted.html')">Getting started</a><ul class="sectlevel4"></ul></li><li><a style="" href="javascript:navigatePage('../language/language.html')">Language</a><ul class="sectlevel4"><li><a style="" href="javascript:navigatePage('../language/types.html')">Types</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('../language/interfaces.html')">Interface signatures</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('../language/statemachines.html')">Interfaces</a><ul class="sectlevel5"><li><a style="" href="javascript:navigatePage('../language/states.html')">States</a><ul class="sectlevel6"></ul></li><li><a style="" href="javascript:navigatePage('../language/transitions.html')">Transitions</a><ul class="sectlevel6"></ul></li><li><a style="" href="javascript:navigatePage('../language/timing_constraints.html')">Timing constraints</a><ul class="sectlevel6"></ul></li><li><a style="" href="javascript:navigatePage('../language/data_constraints.html')">Data constraints</a><ul class="sectlevel6"></ul></li><li><a style="" href="javascript:navigatePage('../language/generic_constraints.html')">Generic constraints</a><ul class="sectlevel6"></ul></li></ul></li><li><a style="" href="javascript:navigatePage('../language/components.html')">Components</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('../language/expressions.html')">Statements and expressions</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('../language/comments.html')">Documenting models</a><ul class="sectlevel5"></ul></li></ul></li></ul></li><li><a style="" href="javascript:navigatePage('../generators/generators.html')">Generator tasks</a><ul class="sectlevel3"><li><a style="" href="javascript:navigatePage('../generators/umlgeneration.html')">Generation of UML diagrams</a><ul class="sectlevel4"></ul></li><li><a style="" href="javascript:navigatePage('../generators/docgeneration.html')">Document generation</a><ul class="sectlevel4"></ul></li><li><a style="" href="javascript:navigatePage('../generators/monitoring.html')">Monitoring</a><ul class="sectlevel4"></ul></li><li><a style="" href="javascript:navigatePage('../generators/reachabilitygraph.html')">Reachability graph</a><ul class="sectlevel4"></ul></li><li><a style="" href="javascript:navigatePage('../generators/testgeneration.html')">Test generation</a><ul class="sectlevel4"></ul></li></ul></li><li><a style="" href="javascript:navigatePage('intro.html')">Tutorial</a><ul class="sectlevel3"><li><a style="" href="javascript:navigatePage('preparation.html')">Preparation</a><ul class="sectlevel4"></ul></li><li><a style="" href="javascript:navigatePage('serviceinterface.html')">Service interface</a><ul class="sectlevel4"><li><a style="" href="javascript:navigatePage('activity1.html')">Activity 1: Get familiar with the Vending Machine</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('activity2.html')">Activity 2: Make an initial specification of the service interface</a><ul class="sectlevel5"></ul></li><li><a style="font-weight: bold" href="javascript:navigatePage('activity3.html')">Activity 3: Check an execution trace against the state machine</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('activity4.html')">Activity 4: Extend the specification of the service interface</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('activity5.html')">Activity 5: Add a time constraint</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('activity6.html')">Activity 6: Documentation generation</a><ul class="sectlevel5"></ul></li></ul></li><li><a style="" href="javascript:navigatePage('coincheckinterface.html')">Coin checker interface</a><ul class="sectlevel4"><li><a style="" href="javascript:navigatePage('activity7.html')">Activity 7: State machine of the coin checker</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('activity8.html')">Activity 8: Check the specified interfaces by monitoring</a><ul class="sectlevel5"></ul></li></ul></li><li><a style="" href="javascript:navigatePage('userinterface.html')">User interface</a><ul class="sectlevel4"><li><a style="" href="javascript:navigatePage('activity9.html')">Activity 9: State machine of the user interface</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('activity10.html')">Activity 10: Check the specified interfaces by monitoring</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('activity11.html')">Activity 11: Define time constraints</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('activity12.html')">Activity 12: Define a data constraint</a><ul class="sectlevel5"></ul></li></ul></li><li><a style="" href="javascript:navigatePage('componentmodel.html')">Component model</a><ul class="sectlevel4"><li><a style="" href="javascript:navigatePage('activity13.html')">Activity 13: Define component and add functional constraint</a><ul class="sectlevel5"></ul></li><li><a style="" href="javascript:navigatePage('activity14.html')">Activity 14: Define additional component constraints</a><ul class="sectlevel5"></ul></li></ul></li><li><a style="" href="javascript:navigatePage('concludingremarks.html')">Concluding remarks</a><ul class="sectlevel4"></ul></li></ul></li><li><a style="" href="javascript:navigatePage('../commandline/commandline.html')">Command line tool</a><ul class="sectlevel3"></ul></li><li><a style="" href="javascript:navigatePage('../eventfiles/eventfiles.html')">Event files</a><ul class="sectlevel3"></ul></li><li><a style="" href="javascript:navigatePage('../shortcuts/shortcuts.html')">Shortcuts</a><ul class="sectlevel3"></ul></li><li><a style="" href="javascript:navigatePage('../problems/problemsolving.html')">Problem solving</a><ul class="sectlevel3"></ul></li></ul></li></ul>
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<div class="sect1">
<h2 id="_activity_3_check_an_execution_trace_against_the_state_machine"><a class="anchor" href="#_activity_3_check_an_execution_trace_against_the_state_machine"></a>Activity 3: Check an execution trace against the state machine</h2>
<div class="sectionbody">
<div class="paragraph normal">
<p>Once the initial state machine model is defined,
an execution trace like <em>VendingMachine.events</em> can be checked for
conformance against this model.
First create in the main project directory
a folder <em>VendingMachineEventsFiles</em> by<br></p>
</div>
<div class="listingblock">
<div class="content">
<pre>File &gt; New &gt; Folder ; choose Vending Machine Example as parent</pre>
</div>
</div>
<div class="paragraph">
<p>Next extend <em>VendingMachine.prj</em> with a task
to generate the monitoring (you may copy the text below):</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlight"><code>Generate Monitors {
monitoringIService for interface IService {
trace directories "VendingMachineEventsFiles"
}
}</code></pre>
</div>
</div>
<div class="paragraph">
<p>The lay-out can be improved by means of <em>&lt;CTRL&gt;-&lt;SHIFT&gt;-F</em>.
Next perform the following steps:</p>
</div>
<div class="olist arabic">
<ol class="arabic">
<li>
<p>Execute again the steps from Activity 1 by just switching on and off
the machine a couple of times and performing <em>LoadProducts</em>.
Do not perform any other actions!
These actions are recorded in file <em>VendingMachine.events</em>.</p>
</li>
<li>
<p>Rename file <em>VendingMachine.events</em> to <em>VendingMachine1.events</em>
(use right-click on the file &gt; Rename) and
move it to folder <em>VendingMachineEventsFiles</em>.</p>
</li>
<li>
<p>Construct a few more .event files, including a few that
do not conform to the specification, and move them also
to folder <em>VendingMachineEventsFiles</em> after renaming.</p>
</li>
<li>
<p>Right-click on file <em>VendingMachine.prj</em> and
choose "Run As &gt; CommaSuite Generation and Monitoring"<em>.</em>
The check is executed and results are produced.</p>
<div class="ulist">
<ul>
<li>
<p>In order to view the results of monitoring,
see file <em>dashboard.html</em> in
folder <em>comma-gen</em>.
It contains information about errors and warnings.</p>
<div class="ulist">
<ul>
<li>
<p>As soon as the monitoring detects that a .events file
does not conform to the state machine of the interface,
an error is generated and monitoring of this files terminates.</p>
</li>
<li>
<p>Later we will also define time and data constraints;
violations of these constraints are reported as warnings
and monitoring continues.</p>
</li>
</ul>
</div>
</li>
<li>
<p>The dashboard also provides coverage information;
in each state the transitions are numbered in the order of
occurrence and the dashboard describes for each transition
how often it was used during monitoring.
If a transition contains multiple clauses (by mean of the "OR" construct)
then also the clauses are numbered.
The dashboard also reports the percentage of covered transitions and states.</p>
</li>
</ul>
</div>
</li>
</ol>
</div>
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