ISO/IEC INTERNATIONAL STANDARD 7942-3 First edition 1999-02-01 Information technology Computer graphics and image processing - Graphical Kernel Systems (GKS) -- Part 3: Audit trail Technologies de I'informationInfographie et traitement d'image SystemegraphiqueKernel (GKS)- Partie 3: Historique d'expertise IEC Reference number ISO/EC 7942-3:1999(E) Copyright Intemational Organization for Standardization oyIHS Not for Resale ISO/IEC7942-3:1999(E) Contents Foreword. .iii Introduction.. iv 1 Scope 2 Normative references.... 2 3 Definitions.. 4.2 Representation of data values.. 4.2.1 Introduction ........ 4.2.2 Representation of constants ... 4.2.3 Representation of set types.. 4.2.4 Representation of tuple types .. 4.2.5 Representation of function types 4.2.6 Representation of discriminated union types... 4.2.7 Representation of sequence types. 5 Audit Trail Grammar .... 5.1 Notation... 5.2 Audit trail ... 5.3 Audit trail elements 5.4 Basic type definitions... 5.5 Derived type definitions.... .19 5.6 The types AuditFuncName and FuncParams @ISO/IEC1999 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and micro- film,without permission in writing from the publisher. ISO/IEC Copyright Office · Case postale 56 ·CH-1211 Geneve 20· Switzerland Printed in Switzerland ii Copyright Intermational Organization for Standardization NoreproductionornetworkingpermitedwithoutlicensefromIHS Not for Resale ISO/IEC 7942-3:1999(E) @ ISO/IEC Foreword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commis- sion) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and uou governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC1.DraftInternational Standardsadoptedbythejointtechnicalcommitteearecirculated tonational bodies for voting. Publication as an International Standard requires approval by at least 75% of the national bodies casting a vote. International Standard ISO/IEC 7942-3 was prepared by Joint Technical Committee ISO/IEC JTC1, Informa- tion technology, Subcommittee SC24, Computer graphics and image processing. ISO/IEC 7942 consists of the following parts, under the general title Information technology - Computer graphics and image processing -Graphical Kernel System (GKS): PartI:Functional description Part 2: NDC metafile Part 3: Audit trail Part4:Picturepartarchive ili Copyright Intemational Organization for Standardization ed without lic cense from IHS Not for Resale