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Difference between
version 129
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version 128:
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| - ! Abbreviated Annotation-Language Syntax |
| + ! The Abbreviated Annotation-Language Syntax |
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| - For resources and their objects, the abbreviated syntax permits the following expressions given a resource label {{T}} and attributes {{A1}} to {{An}}. |
| + For expressing annotation objects, the abbreviated syntax permits the following atoms given a resource label {{T}} and attributes {{A1}} to {{An}}. |
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| - The expression {{T}} selects corresponding objects of the resource. For example, if the resource is a data set, {{T}} selects the tuple objects of the resource. If the resource is an actor, {{T}} selects instances of the actor. The expression {{T.A1}} selects the nested {{A1}} objects for objects of {{T}}. For {{T}} representing a data set, this expression would select the values of attribute {{A1}} for tuples of {{T}}. The last expression selects nested attributes for complex structures occuring, for example, in actor input/output ports. For instance, if {{T}} represents an input port to some actor, the expression {{T.A1.A2}} selects the {{A2}} objects nested within {{A1}} objects for {{T}} objects. |
| + |
| + |
| + The atom {{T}} selects corresponding objects of the resource. For example, if the resource is a data set, {{T}} selects the tuple objects of the resource. If the resource is an actor, {{T}} selects instances of the actor. The expression {{T.A1}} selects the nested {{A1}} objects for objects of {{T}}. For {{T}} representing a data set, this expression would select the values of attribute {{A1}} for tuples of {{T}}. The last expression selects nested attributes for complex structures occuring, for example, in actor input/output ports. For instance, if {{T}} represents an input port to some actor, the expression {{T.A1.A2}} selects the {{A2}} objects nested within {{A1}} objects for {{T}} objects. |
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| + Atoms can be combined to form expressions. In particular, an expression is either one of the three style of atoms above, or a comma-separated list of the last two style of atoms. |
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| - In the abbreviated syntax, ontology expressions consist of single concept labels {{C}}. |
| + Using the abbreviated syntax, ontology expressions only consist of single concept labels {{C}}. |
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