طراحی خودکار سیستم های اطلاعات وب چند لایه

In the development of web information systems, design tasks are commonly used in approaches for Model-Driven Web Engineering (MDWE) to represent models. To generate fully implemented prototypes, these models require a rich representation of the semantics for actions (e.g., database persistence operations). In the development of some use case scenarios for the multi-layered development of web information systems, these design tasks may consume weeks of work even for experienced designers. The literature pointed out that the impossibility for executing a software project with short iterations hampers the adoption of some approaches for design in some contexts, such as start-up companies. A possible solution to introduce design tasks in short iterations is the use of automated design techniques, which assist the production of models by means of transformation tasks and refinements. This paper details our methodology for MDWE, which is supported by automated design techniques strictly associated with use case patterns of type CRUD. The novelty relies on iterations that are possible for execution with short time-scales. This is a benefit from automated design techniques not observed in MDWE approaches based on manual design tasks. We also report on previous experiences and address open questions relevant for the theory and practice of MDWE.