Differencing and Merging of Architectural Views

Authors:
Marwan Abi-Antoun;Jonathan Aldrich;Nagi Nahas;Bradley Schmerl;David Garlan
Affiliations:
Carnegie Mellon University, Pittsburgh, PA;Carnegie Mellon University, Pittsburgh, PA;Carnegie Mellon University, Pittsburgh, PA;Carnegie Mellon University, Pittsburgh, PA;Carnegie Mellon University, Pittsburgh, PA
Venue:
ASE '06 Proceedings of the 21st IEEE/ACM International Conference on Automated Software Engineering
Year:
2006

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Abstract

Existing approaches to differencing and merging architectural views are based on restrictive assumptions such as requiring view elements to have unique identifiers or exactly matching types. We propose an approach based on structural information by generalizing a published polynomial-time tree-to-tree correction algorithm (that detects inserts, renames and deletes) into a novel algorithm to additionally detect restricted moves and support forcing and preventing matches between view elements. We incorporate the algorithm into tools to compare and merge component-and-connector (C&C) architectural views. Finally, we provide an empirical evaluation of the algorithm on case studies to find and reconcile interesting divergences between architectural views.