Model-Driven Integration and Management of Data Access Objects in Process-Driven SOAs

In most process-driven and Service Oriented Architectures (SOA), services need to access data stored in a database using database transactions. This is typically done using Data Access Objects (DAOs), but so far the integration of the business process, service, and DAO concepts is not well defined. As a consequence, when the number of services in a SOA grows, the number of DAOs can increase considerably and become hard to manage. In addition to this technical issue, business processes have to be highly adaptable to both functional and technical requirements. The authors propose a model-driven approach for integrating and managing DAOs in process-driven SOAs.