SOFTWARE DESIGN METHODS AND REPRESENTATIONS - Software Design for Six-Sigma: A Roadmap for Excellence - page 100

main approaches for system-level design are as follows: hardware/software codesign,
platform-based design , and component-based design .
In this chapter, also we investigated the codesign approach of system-level design.
Codesign follows a top-down design approach with a unified view of hardware and
software. The approach uses step-wise refinements steps to implement from high-
level specification an entire system on heterogeneous target architectures. Several
codesign methodologies and tools have been developed in the research community
and used in the industry. Most of them concentrate on specific aspects of the codesign
process and do not cover the whole design process. Based on popularity, and literature
availability, three codesign systems were studied and compared.
MOCs are used in codesign systems to specify systems using a formal represen-
tation and to allow refinement during the design process. The selection of a specific
MOC is highly depended on the application intended to be modeled. As shown in
Table 4.3, most MOCs support a specific application domain, whereas only one (out
of the presented models) can support multiple domains.
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