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| </head> |
| <body class="article toc2 toc-left"> |
| <div id="header"> |
| <div id="toc" class="toc2"> |
| <div id="toctitle">Index</div> |
| <ul class="sectlevel1"><li><a style="" href="/index.html">Home</a></li><li><a style="" href="/site/download.html">Download</a></li><li><a style="" href="/site/developers.html">Developers</a></li><li><a style="" href="/site/user_guide.html">User guide</a><ul class="sectlevel2"><li><a style="font-weight: bold" href="/overview/intro.html">Language overview</a><ul class="sectlevel3"><li><a style="" href="/overview/gettingstarted.html">Getting started</a><ul class="sectlevel4"></ul></li><li><a style="" href="/language/language.html">Language</a><ul class="sectlevel4"><li><a style="" href="/language/types.html">Types</a><ul class="sectlevel5"></ul></li><li><a style="" href="/language/interfaces.html">Interface signatures</a><ul class="sectlevel5"></ul></li><li><a style="" href="/language/statemachines.html">Interfaces</a><ul class="sectlevel5"><li><a style="" href="/language/states.html">States</a><ul class="sectlevel6"></ul></li><li><a style="" href="/language/transitions.html">Transitions</a><ul class="sectlevel6"></ul></li><li><a style="" href="/language/timing_constraints.html">Timing constraints</a><ul class="sectlevel6"></ul></li><li><a style="" href="/language/data_constraints.html">Data constraints</a><ul class="sectlevel6"></ul></li><li><a style="" href="/language/generic_constraints.html">Generic constraints</a><ul class="sectlevel6"></ul></li></ul></li><li><a style="" href="/language/components.html">Components</a><ul class="sectlevel5"></ul></li><li><a style="" href="/language/expressions.html">Statements and expressions</a><ul class="sectlevel5"></ul></li><li><a style="" href="/language/comments.html">Documenting models</a><ul class="sectlevel5"></ul></li></ul></li></ul></li><li><a style="" href="/generators/generators.html">Generator tasks</a><ul class="sectlevel3"><li><a style="" href="/generators/umlgeneration.html">Generation of UML diagrams</a><ul class="sectlevel4"></ul></li><li><a style="" href="/generators/docgeneration.html">Document generation</a><ul class="sectlevel4"></ul></li><li><a style="" href="/generators/monitoring.html">Monitoring</a><ul class="sectlevel4"></ul></li><li><a style="" href="/generators/reachabilitygraph.html">Reachability graph</a><ul class="sectlevel4"></ul></li><li><a style="" href="/generators/testgeneration.html">Test generation</a><ul class="sectlevel4"></ul></li></ul></li><li><a style="" href="/tutorial/intro.html">Tutorial</a><ul class="sectlevel3"><li><a style="" href="/tutorial/preparation.html">Preparation</a><ul class="sectlevel4"></ul></li><li><a style="" href="/tutorial/serviceinterface.html">Service interface</a><ul class="sectlevel4"><li><a style="" href="/tutorial/activity1.html">Activity 1: Get familiar with the Vending Machine</a><ul class="sectlevel5"></ul></li><li><a style="" href="/tutorial/activity2.html">Activity 2: Make an initial specification of the service interface</a><ul class="sectlevel5"></ul></li><li><a style="" href="/tutorial/activity3.html">Activity 3: Check an execution trace against the state machine</a><ul class="sectlevel5"></ul></li><li><a style="" href="/tutorial/activity4.html">Activity 4: Extend the specification of the service interface</a><ul class="sectlevel5"></ul></li><li><a style="" href="/tutorial/activity5.html">Activity 5: Add a time constraint</a><ul class="sectlevel5"></ul></li><li><a style="" href="/tutorial/activity6.html">Activity 6: Documentation generation</a><ul class="sectlevel5"></ul></li></ul></li><li><a style="" href="/tutorial/coincheckinterface.html">Coin checker interface</a><ul class="sectlevel4"><li><a style="" href="/tutorial/activity7.html">Activity 7: State machine of the coin checker</a><ul class="sectlevel5"></ul></li><li><a style="" href="/tutorial/activity8.html">Activity 8: Check the specified interfaces by monitoring</a><ul class="sectlevel5"></ul></li></ul></li><li><a style="" href="/tutorial/userinterface.html">User interface</a><ul class="sectlevel4"><li><a style="" href="/tutorial/activity9.html">Activity 9: State machine of the user interface</a><ul class="sectlevel5"></ul></li><li><a style="" href="/tutorial/activity10.html">Activity 10: Check the specified interfaces by monitoring</a><ul class="sectlevel5"></ul></li><li><a style="" href="/tutorial/activity11.html">Activity 11: Define time constraints</a><ul class="sectlevel5"></ul></li><li><a style="" href="/tutorial/activity12.html">Activity 12: Define a data constraint</a><ul class="sectlevel5"></ul></li></ul></li><li><a style="" href="/tutorial/componentmodel.html">Component model</a><ul class="sectlevel4"><li><a style="" href="/tutorial/activity13.html">Activity 13: Define component and add functional constraint</a><ul class="sectlevel5"></ul></li><li><a style="" href="/tutorial/activity14.html">Activity 14: Define additional component constraints</a><ul class="sectlevel5"></ul></li></ul></li><li><a style="" href="/tutorial/concludingremarks.html">Concluding remarks</a><ul class="sectlevel4"></ul></li></ul></li><li><a style="" href="/commandline/commandline.html">Command line tool</a><ul class="sectlevel3"></ul></li><li><a style="" href="/eventfiles/eventfiles.html">Event files</a><ul class="sectlevel3"></ul></li><li><a style="" href="/shortcuts/shortcuts.html">Shortcuts</a><ul class="sectlevel3"></ul></li><li><a style="" href="/problems/problemsolving.html">Problem solving</a><ul class="sectlevel3"></ul></li></ul></li></ul> |
| </div> |
| </div> |
| <div id="content"> |
| <div class="sect1"> |
| <h2 id="_introduction"><a class="anchor" href="#_introduction"></a>Introduction</h2> |
| <div class="sectionbody"> |
| <div class="paragraph normal"> |
| <p>The lack of precise and explicit specifications of component interfaces often |
| leads to problems during the integration of components. |
| Also updates of components might lead to system issues, |
| e.g., caused by changes in the interaction protocol or timing behavior. |
| At system level, it is usually difficult to detect the source of such issues. |
| The CommaSuite framework consists of a set of languages and tools that |
| allow the precise definition and analysis of client-server interfaces.</p> |
| </div> |
| <div class="paragraph"> |
| <p>To specify the interface of a server towards its clients, |
| the approach contains the following ingredients:</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>The interface signature, i.e., the set of commands, signals and notifications |
| that a server offers to its clients.</p> |
| <div class="paragraph"> |
| <p><span class="image"><img src="img/image1.png" alt="image" width="248" height="146"></span></p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Commands: synchronous function calls from client to server; |
| the server sends a reply to the client</p> |
| </li> |
| <li> |
| <p>Signals: asynchronous function calls from client to server; |
| the server does not send a reply</p> |
| </li> |
| <li> |
| <p>Notifications: asynchronous messages from server to client; |
| the client does not send a reply</p> |
| </li> |
| </ul> |
| </div> |
| </li> |
| <li> |
| <p>State machines that describe the interaction protocol between |
| client and server, i.e., the allowed sequence of commands, signals and |
| notifications in any state.</p> |
| </li> |
| <li> |
| <p>Data and timing constraints on the client-server interaction, |
| such as lower and upper bounds on response times, periodicity requirements, |
| and constraints on parameters of events.</p> |
| </li> |
| </ul> |
| </div> |
| <div class="paragraph"> |
| <p>The CommaSuite language also allows modeling of components with required and provided interfaces. |
| Also constraints between interfaces can be expressed.</p> |
| </div> |
| <div class="paragraph"> |
| <p>Based on these models a number of different artifacts can be generated, |
| as illustrated in the following figure.</p> |
| </div> |
| <div class="paragraph"> |
| <p><span class="image"><img src="img/CommaOverview.png" alt="image"></span></p> |
| </div> |
| <div class="paragraph"> |
| <p>We list a number of possible generators:</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p>Visualization and documentation. The CommaSuite framework generates plantUML files that visualize state machines. |
| In addition, constraints can be intuitively represented as annotated UML sequence diagrams. Also MS Word documents |
| can be generated by extracting definitions and comments from models and |
| inserting them in a document template. |
| This process also utilizes the diagrams obtained from state machines and |
| constraint rules.</p> |
| </li> |
| <li> |
| <p>Interface proxy code. |
| Interface signatures can be transformed to interface proxy code |
| for deployment on a particular type of middleware.</p> |
| </li> |
| <li> |
| <p>Model-based testing. |
| Based on the state machines, test cases and models can be generated for various testing |
| techniques.</p> |
| </li> |
| <li> |
| <p>Simulation. Simulation of a model helps in receiving an early feedback and |
| detecting errors.</p> |
| </li> |
| <li> |
| <p>Monitoring. A monitors can be generated to check whether a trace |
| of client-server interaction conforms to the specification, |
| both for a single interface and for a component with multiple interfaces and |
| additional constraints.</p> |
| </li> |
| </ul> |
| </div> |
| <div class="paragraph"> |
| <p>See the currently supported <a href="../generators/generators.html">generators</a>.</p> |
| </div> |
| </div> |
| </div> |
| </div> |
| </body> |
| </html> |
