IRE Transactions on Communications Systems · 1982 · 66 citations · 0 references
ComputingComputer EngineeringComputer ScienceFormal MethodsModel-based Systems EngineeringProgramming LanguagesFinite State Machine ModelingSpecification LanguagesFinite State Machine SpecificationProcess Modeling LanguagesProcess Semantics
The CCITT Specification and Description Language (SDL) was adopted as a recommendation in 1976 and refined in 1980, and it provides an implementation‑independent, finite‑state‑machine‑based language for specifying functional process logic. This paper presents the background and history of SDL and its relation to other CCITT‑recommended languages. The paper briefly explains SDL’s concepts and representation forms. The authors survey current SDL applications and tools and discuss anticipated future developments.
The CCITT Specification and Description Language (SDL) became a CCITT recommendation in 1976, and a refined version was published by CCITT in 1980. This paper presents the background and history of SDL, and its relation to the other languages recommended by CCITT. SDL is mainly a language to specify and describe the logic of functional processes in a fashion independent of implementation techniques, and is based on a finite-state machine approach. The concepts and representation forms of SDL are briefly explained. A survey is given of today's applications and tools, and the expected future developments are discussed.