Abstract: With the development and advancement of the top-level design work of the entire army, a certain number of architecture design model assets have been gradually accumulated and formed in the use of the Inf-ProA framework and its supporting tools to carry out architectural design work in the military field. When architects are designing models, there is a wide range of requirements for referencing existing similar models. However, the existing architecture methods and tools are still unable to measure and recommend similar models with reference value. Based on the basic architecture design elements of the Information Activity Model (IAV-1a), through the research of similarity measurement on extensible language documents and unified modeling language model, this article puts forward a method that can be used to measure the similarity of Inf-ProA information activity process model. This method measures the similarity of the content and structure of the information activity process model, and considers the design similarity close to the final design results of the model, and uses the practical experience of architecture design to make the similarity measurement results more reasonable. The result of the similarity measurement can be used to provide a maximum similarity match for the model being designed, which is of great significance for recommending to the architect to complete the auxiliary design. The experimental results show that the method can effectively measure the similarity of the information activity process model.

Key words: architecture model, similarity calculation, sub-graph isomorphism