PrecedenceConstraint : public class
Created: |
2006-02-28 12:47:16 |
Modified: |
2011-02-04 07:56:30 |
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Project: |
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Author: |
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Version: |
1.0 |
Phase: |
1.0 |
Status: |
Proposed |
Complexity: |
Easy |
Advanced: |
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UUID: |
{AE2CA1E7-22D4-49a5-97EE-B2E6557437D6} |
Appears In: |
ExecutionTime, PrecedenceConstraint |
<p>The PrecedenceConstraint represents a particular constraint applied on the execution sequence of functions.<br/></p><p><br/></p><p>Semantics:<br/></p><p>The semantics for the PrecedenceConstraint metaclass is to define an association relationship between Functions, indicating the association relationship such that all predecessors have completed before the successors are started.<br/></p><p><br/></p><p>Note: Without a precedence relation, Functions are executed according to their data dependencies, if these are uni-directional. For bi-directional data dependencies, execution order is not defined unless the PrecedenceDependency relationship is used.<br/></p><p><br/></p><p>Notation:<br/></p><p>PrecedenceConstraint is shown as a dashed arrow with "Precedes" next to it. It points from preceeding to the successive entity.<br/></p><p><br/></p><p>Extension: <br/></p><p>The PrecedenceConstraint extends UML2 metaclass Class and Dependency.<br/></p>
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