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| <h3 class="sectionHead"><span class="titlemark">1.1 </span> <a |
| id="x4-30001.1"></a>eTrice Overview</h3> |
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| <h4 class="subsectionHead"><span class="titlemark">1.1.1 </span> <a |
| id="x4-40001.1.1"></a>What is eTrice?</h4> |
| <!--l. 5--><p class="noindent" >eTrice provides an implementation of the ROOM modeling language (Real Time Object Oriented Modeling) together with |
| editors, code generators for Java, C++ and C code and exemplary target middleware. |
| </p><!--l. 8--><p class="noindent" >The model is defined in textual form (Xtext) with graphical editors (Graphiti) for the structural and behavioral (i.e. state |
| machine) parts. |
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| </p> |
| <h4 class="subsectionHead"><span class="titlemark">1.1.2 </span> <a |
| id="x4-50001.1.2"></a>Reduction of Complexity</h4> |
| <!--l. 13--><p class="noindent" >eTrice is all about the reduction of complexity: |
| </p> |
| <ul class="itemize1"> |
| <li class="itemize">structural complexity |
| <ul class="itemize2"> |
| <li class="itemize">by explicit modeling of hierarchical Actor containment, layering and inheritance</li></ul> |
| </li> |
| <li class="itemize">behavioral complexity |
| <ul class="itemize2"> |
| <li class="itemize">by hierarchical state machines with inheritance</li></ul> |
| </li> |
| <li class="itemize">team work complexity |
| <ul class="itemize2"> |
| <li class="itemize">because loosely coupled Actors provide a natural way to structure team work |
| |
| |
| </li> |
| <li class="itemize">since textual model notation allows simple branching and merging</li></ul> |
| </li> |
| <li class="itemize">complexity of concurrent & distributed systems |
| <ul class="itemize2"> |
| <li class="itemize">because loosely coupled Actors are deployable to threads, processes, nodes</li></ul> |
| </li> |
| <li class="itemize">complexity of variant handling and reuse (e.g. for product lines) |
| <ul class="itemize2"> |
| <li class="itemize">by composition of existing Actors to new structures |
| </li> |
| <li class="itemize">since Protocols and Ports make Actors replaceable |
| </li> |
| <li class="itemize">by inheritance for structure, behavior and Protocols |
| </li> |
| <li class="itemize">by making use of model level libraries</li></ul> |
| </li> |
| <li class="itemize">complexity of debugging |
| <ul class="itemize2"> |
| <li class="itemize">model level debugging: state machine animation, data inspection and manipulation, message injection, |
| generated message sequence charts |
| </li> |
| <li class="itemize">model checking easier for model than for code (detect errors before they occur)</li></ul> |
| </li></ul> |
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