ISO-IEC 13568-2002 Z formal specification notation — Syntax, type system and semantics

Z is a formal specification notation used to describe systems and software. It provides a mathematical way to describe the requirements, specifications, and designs of software systems. Z-notation is based on first-order mathematical logic and is designed to create precise and formal descriptions of systems, avoiding ambiguity and ambiguity. The ISO/IEC 13568 standard defines the syntax, type system, and semantics for Z notation. This standard helps provide a uniform and standardized way to write and interpret specifications written in Z notation. This is especially important in the development of mission-critical systems where a high degree of precision and formality is required in the requirements specification. ISO/IEC 13568 contains rules for generating correct and syntactically correct specifications for the Z notation, defines a type system for that notation (what data types can be used), and establishes the semantics, i.e. the meaning and interpretation, of the corresponding Z constructs. This standard plays an important role in the field of formal software development methods and systems specification, helping engineers create more reliable and accurate software products.