Sinfonia - an open feature-based design module. Task I: Requirements of a CAD environment

SINFONIA is a module for feature-based design which is configurable to users and applications within diverse CAE environments, particularly in the area of mechanical engineering. SINFONIA has an open and modular architecture that allows to modify and extend existing functionalities, and to integrate new modeling facilities and application tasks. This module enables the users to work with standard pre-defined design features delivered with the module, or to define dynamically their own specific design features during the design session. Furthermore, SINFONIA allows the interactive definition of constraints concerning the product semantics. Definition and aministration of contraints in feature-based models provided by a consistency manager is supported to reach semanical correctness of the part models.