This document specifies a framework for a distributed real-time Access system. It includes:
1) an ID triggered modular system architecture, the functions of the modules, the semantics of messages those modules exchange, and elements of messages;
2) the system behaviour from the time it receives an access request until the time it sends the result along with the sequence;
3) performance measurement mechanisms using a time stamping function that can be employed for the evaluation of the system.nd edition 2019-01 Information technology — Distributed application platforms and services (DAPS) — Framework for distributed real-time access systems Technologies de l'information — Services et plate-formes d'application distribuées — Structure pour les contr？les d'accès diffusés en temps réel Reference number ISO/IEC 20933:2019(E) ？ ISO/IEC 2019 ISO/IEC 20933:2019(E) COPYRIGHT PROTE