Chakrabarti, Arindam ; de Alfaro, Luca ; Henzinger, Thomas AIST Austria ; Mang, Freddy Y
We present interface models that describe both the input assumptions of a component, and its output behavior. By enabling us to check that the input assumptions of a component are met in a design, interface models provide a compatibility check for component-based design. When refining a design into an implementation, interface models require that the output behavior of a component satisfies the design specification only when the input assumptions of the specification are satisfied, yielding greater flexibility in the choice of implementations. Technically, our interface models are games between two players, Input and Output; the duality of the players accounts for the dual roles of inputs and outputs in composition and refinement. We present two interface models in detail, one for a simple synchronous form of interaction between components typical in hardware, and the other for more complex synchronous interactions on bidirectional connections. As an example, we specify the interface of a bidirectional bus, with the input assumption that at any time at most one component has write access to the bus. For these interface models, we present algorithms for compatibility and refinement checking, and we describe efficient symbolic implementations.
This research was supported in part by the AFOSR grant F49620-00-1-0327, the DARPA grant F33615-00-C-1693, the MARCO grant 98-DT-660, the NSF grant CCR-9988172, the SRC grant 99-TJ-683.003, and the NSF CAREER award CCR-0132780.
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CAV: Computer Aided Verification
Chakrabarti A, De Alfaro L, Henzinger TA, Mang F. Synchronous and bidirectional component interfaces. In: Vol 2404. Springer; 2002:414-427. doi:10.1007/3-540-45657-0_34
Chakrabarti, A., De Alfaro, L., Henzinger, T. A., & Mang, F. (2002). Synchronous and bidirectional component interfaces (Vol. 2404, pp. 414–427). Presented at the CAV: Computer Aided Verification, Springer. https://doi.org/10.1007/3-540-45657-0_34
Chakrabarti, Arindam, Luca De Alfaro, Thomas A Henzinger, and Freddy Mang. “Synchronous and Bidirectional Component Interfaces,” 2404:414–27. Springer, 2002. https://doi.org/10.1007/3-540-45657-0_34.
A. Chakrabarti, L. De Alfaro, T. A. Henzinger, and F. Mang, “Synchronous and bidirectional component interfaces,” presented at the CAV: Computer Aided Verification, 2002, vol. 2404, pp. 414–427.
Chakrabarti A, De Alfaro L, Henzinger TA, Mang F. 2002. Synchronous and bidirectional component interfaces. CAV: Computer Aided Verification, LNCS, vol. 2404. 414–427.
Chakrabarti, Arindam, et al. Synchronous and Bidirectional Component Interfaces. Vol. 2404, Springer, 2002, pp. 414–27, doi:10.1007/3-540-45657-0_34.