Unified Modeling Language is a modelling language used to visualize software system during requirement engineering phase.It was accepted as a standard modeling language for visualizing, specifying and documenting software systems by International Organization for Standardization (ISO) as a standard specification. It contained different type of diagrams for specifying software system, among these diagrams is sequence diagrams which is used to specify the functional behavior of software system. The growing complexity of software systems is one of the motivation behind matching of UML diagrams in order to pave the way of reusing existing software to developed new software systems. Previous works on sequence diagrams matching are based on Graph representation in which there is node whenever there is message sending or received. However, the search space for these approach is very large due to the number of nodes in the graph which makes the matching computationally expensive. This paper employed the use of Dynamic Programming approach in order to improve the efficiency of matching between two or more sequence diagrams.
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