Reengenharia de interfaces utilizando Wrapping.
Affonso, Frank José
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With the technological evolution and the increasing utilization of the Internet, companies and governmental institutions have been looking for modern solution to replace and improve their legacy systems. These kind of solutions require high investments, being able to use the reengineering process in these cases. A maner to modify these systems is through reengineering of their interfaces, by wrapping of their logic. This technique preserves the native environment of system and its functionalities, reducing in time and cost the reengineering process. To support the migration of legacies systems in a general way, there is an Interface Reengineering Process (IRP), whose accomplish the wrapping of its functionalities and connect them with a new user Web interface. This Web interface connects itself with the identified components of the legacy system following the special resources that they offer. The IRP is summarized by the study of the interface and logic of the system. In this way, it possible to accomplish the system organization for the wrapping to be done, which is composed by the legacies functionalities covered by a new software layer. This new layer makes possible the communication with the new user interface, which has developed according to the usability criteria. The systems used as case studies were developed using Delphi environment, with or without object orientation characteristics. In this work only systems developed without object orientation characteristics are presented in details. With the use of the new process proposed here, the interface can be developed in any paradigm, while the legacy code remains as the original, simplyfing the system maintenance.
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