In this paper, we present a novel model of CAD tool control that can be used in the constraint-directed control of high-level synthesis tools. To enable this control we introduce the concept of a design space reasoning mechanism. We formally describe a statistical based, machine learning process that automatically generates the tool control knowledge necessary to drive the design space reasoning mechanism. The representation of this tool control knowledge in the form of a fuzzy, linear differential, qualitative model is described. Finally, the experimental results obtained using the Magellan system are presented.>

The need for a robust, multi-user, integrated design environment for electronic systems is the result of the phenomenal growth in integrated circuit fabrication technology over the last decade. Attempts to develop “integrated” design environments highlight the current lack in design tool interoperability. The Very High Speed Integrated Circuits (VHSIC) program recognizes the importance of integrated design environments for the design of future defense electronic systems and for the insertion of new technologies into existing electronic systems, and is attempting to ease the task of integrating disparate electronic system design aids by addressing the design tool interoperability problem through the Engineering Information System (EIS) program. This paper describes the rationale for the EIS program, highlights its goals, and outlines the program's structure.

The phenomenal growth in integrated circuit fabrication technology over the last decade has led to the need for a robust, multi-user, integrated design environment for electronic systems. Attempts to develop “integrated” design environments have highlighted the present lack in design tool interoperability. The Very High Speed Integrated Circuits (VHSIC) Program has recognized the importance of integrated design environments for the design of future defense electronic systems and for the insertion of new technologies into existing electronic systems. The VHSIC Program is attempting to ease the task of integrating disparate electronic system design aids by addressing the design tool interoperability problem through the Engineering Information System (EIS) Program. This panel is the second in a series of panels aimed at discussing different aspects of Engineering Information Systems. The first EIS panel, held at SIGMOD '861, discussed the major issues confronting the implementation of an EIS. The purpose of this panel is to discuss different implementation approaches that will address these issues.