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Dependency Relationships
Dependency relationships describe how elements support or are used by other elements. They can indicated direction in the form of an arrowhead at one end of the line - the direction is optional for some relationships () and mandatory for others (Influence). Four types of dependency relationship are distinguished as indicated in this table.
Dependency Relationships
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Serving 
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The serving relationship represents that an element provides its functionality to another element. |
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Access 
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The access relationship represents the ability of behavior and active structure elements to observe or act upon passive structure elements. |
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Influence 
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The influence relationship represents that an element affects the implementation or achievement of some motivation element. |
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Association 
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An association relationship represents an unspecified relationship, or one that is not represented by another ArchiMate relationship. |