Advanced Information Systems Engineering: 19th International by Pekka Abrahamsson (auth.), John Krogstie, Andreas Opdahl,

By Pekka Abrahamsson (auth.), John Krogstie, Andreas Opdahl, Guttorm Sindre (eds.)

This booklet constitutes the refereed complaints of the nineteenth foreign convention on complicated info structures Engineering, CAiSE 2007, held in Trondheim, Norway in June 2007.

The 39 revised complete papers awarded including 1 keynote speak have been conscientiously reviewed and chosen from 301 submissions. The papers are equipped in topical sections on ontologies, prolonged organisations, info integration, service-oriented structure, strategic alignment, specifications, approach modeling, process engineering, novel functions, participative modeling, and process-aware info systems.

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Advanced Information Systems Engineering: 19th International Conference, CAiSE 2007, Trondheim, Norway, June 11-15, 2007. Proceedings

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Example text

We now have to check, whether every node in Y has a partner in V and vice versa, and whether all edges are of the correct edge type. type) to the edit script. For every edge from v ∈ V to w where the partner of v is not in Y, we append a DeleteEdge(v, w) to the edit script. type) to the edit script. Delete Phase. Let w be the current node when traversing vold in post-order. If w is not matched, it has been deleted. Thus, we append a DeleteN ode(w) operation to the edit script. Complete Algorithm.

So these two nodes are also connected with a vroot relation. For edges like use or belong to slots are inserted to the respective nodes, e. g. K. With the operations defined below we can transform any two RDAG into each other. We represent the old version of an ontology with the graph vold and a new version of the same ontology with the graph vnew . Our goal is to find the differences between two ontology versions in terms of graph operations. We present an algorithm which calculates a so called edit script, which is a sequence of graph operations that transform vold into vnew .

Let w be the current node in a bottom-up traversal of vold ; (a) If w has no partner i. E = E ∪ {DeleteN ode(w)}; ii. Delete w from vold ; 7. Return E; Fig. 4. Pseudocode for comparing two ontology graphs in O(nl ) for the inner nodes x and y. Thus, the complete matching phase is in O(ni · nl · d + nl · d2 ). All nodes that could not be matched (bound by d) could have been renamed. This gives at most d2 node pairs to be compared. For similarity determination of inner nodes we again have to compare the common leaves, which is in O(nl ), thus renaming detection is in O(nl · d2 ).

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