| 摘要 |
Designs are created through a high-level to low-level transformation in the form of a formal top-down development procedure based upon successive refinement. Starting with a high-level (abstract) model, such as a formal abstraction of a protocol standard, successively more detailed models are created through successive refinement, in a fashion which guarantees that properties verified at one level of abstraction hold in all successive levels of abstraction. The successive refinements end with a low-level "model" which forms the ultimate implementation of the protocol. In one embodiment of this invention, the analysis/development apparatus creates a unique C language code representation of the specified system that is guarranteed to carry out the tasks specified when executed in a stored program controlled machine. In another embodiment, the code is used to create a "net list" for manufacturing the specified system. |
