Exact(11)
For any experiment, we always chose the same number of concrete services for all abstract operations.
In HSGs, abstract operations of the upper layer are associated with WSs implementations.
Usually, we may have several abstract operations to bind, implying a combinatorial problem.
Let us consider indeed a sequence of l abstract operations o1 ,…o l
For instance, some patterns suggest implementing abstract operations that allow the framework to access application-specific information.
At the upper layer of an HSG, there are interactions between abstract operations; the behavior of these operations is implemented in the WSs of the second layer.
Similar(49)
The first is the determination of the functional bindings of each abstract operation.
If this set is empty for an abstract operation, then the service composition is not realizable.
For each abstract operation, the execution of this task returns a set of concrete operations that meets its specification.
In order to run the WSC, the middleware must at runtime associate each abstract operation with a concrete one.
Its implementation considered explicitly each winning situation for each TicTacToe player, leading to a much more complex control flow than the corresponding abstract operation specification.
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Justyna Jupowicz-Kozak
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