INTERNATIONAL ISO/IEC STANDARD 20933 Second edition 2019-01 Information technology - Distributed application platforms and services (DAPS) Framework for distributed real-time access systems Technologies de I'information - Services et plate-formes d'application distribuées - Structure pour les controles d'acces diffusés en temps réel Reference number IEC IS0/IEC 20933:2019(E) @IS0/IEC2019 IS0/IEC 20933:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0/IEC 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0/IEC 2019 - All rights reserved IS0/IEC 20933:2019(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms and definitions and acronyms 4 Conformance 5 Overview ..3 6 Transaction 7 Time stamping function. .6 8 Module. .6 8.1 Policy module ..6 8.2 Access-point module 7 8.3 REDmodule ..7 8.4 Processing module .7 8.5 Storage module. .7 9 Messages of each interface ..7 9.1 Messages of Policy interface 8 9.2 Message of Access interface .8 9.3 Messages of Processing interface ..9 9.4 Messages of Storage interface ..11 10 Messages of external interfaces ..13 10.1 Access request from external interface (In) .13 10.2 Final result notification to external interface (Out) ..13 10.3 Time stamp notification. ..14 11 Access system performance management. ..14 11.1 Transaction processing time. .15 11.2 Request performance time 15 11.3 Module processing time 16 11.4 Data transmission time.. .17 11.5 Request performance time for retrieve .17 11.6 Module processing time for retrieve .17 11.7 Data transmission time for retrieve. .18 11.8 Request performance time for store .18 11.9 Module processing time for store ..19 11.10 Data transmission time for store. ..19 11.11 Access point processing time. ..19 Annex A (informative) Service access control system ..21 Annex B (informative) Share information between different Access systems. ..22 Annex C (informative) Usage of time stamping ..23 Annex D (informative) List of messages .26 IS0/IEC 2019 - All rights reserved ii