A Scenario-based Modeling Method for Crossover Services

With the continuous emergence of large companies, businesses in different domains have been amalgamated, which leads to a prevalence of crossover services. Different from service choreographies and collaborations, the crossover services involve multiple domains and are highly integrated in terms of processes, entities, abilities, and resources. In a crossover service, the elements of independent service are disrupted and reorganized, which leads to the increase of the complexity of traditional modeling methods. This new form of service brings challenges to business analysis and modeling, such as semantic ambiguity, business coupling, and test explosion. In this work, a crossover service-oriented modeling method, namely CoSM, is proposed to help with the construction, reuse, and analysis of crossover services. CoSM is designed based on scenarios, which can be used to slice the processes and route to each other through the triggers. Besides, a prototype platform is built and concepts and processes can be constructed through that. We verify CoSM in a real case and design experiments to compare with pertinent models. Experimental results show that our model can express the same process with fewer connectors.