ISO/IEC INTERNATIONAL STANDARD 24643 First edition 2020-11 Architecturefor a distributedreal time access system Architecture d'un systeme d'acces temps reel distribué Referencenumber TEC IS0/IEC24643:2020(E) IS0/IEC2020 IS0/IEC24643:2020(E) COPYRIGHTPROTECTEDDOCUMENT IS0/IEC2020 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 anyform 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 40i: Ch.de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+4122749 0111 Email:copyright@iso.org Website:www.iso.org Published in Switzerland ii @IS0/IEC 2020-All rights reserved