ISO/IEC INTERNATIONAL STANDARD 14568 First edition 1997-05-15 Information technology -- DXL: Diagram eXchange Language for tree-structured charts Technologies de I'information -DXL: Langage pour échange de diagrammepourcartesavec arborescence IEC Tso Reference number ISO/IEC14568:1997(E) Copyright Intemational Organization for Standardization d by IHS Not for Resale ISO/IEC 14568:1997(E) Contents 1 Scope.. 2 Normative references... 3 Definition and acronym. 4 Notation of DXL syntax . 2 5 Definition of DXL Annexes AExamplesofDXLdescription.. B Correspondences between DXL syntax and program constructs of ISO/IEC 8631 11 C Position of DXL... CISO/IEC1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or publisher. ISO/IECCopyright Office·Case postale56·CH-1211Geneve 20·Switzerland Printed in Switzerland ii Copyright Intemational Organization for Standardizatio No reproductic mitted without license from IHS Not for Resale ISO/IEC14568:1997(E) ISO/IEC Foreword ISO (the International Organization for Standardization)and IEC (the International Electrotechnical Commission)form the specialized system for worldwide standardization.National bodies that are members of ISO or IEC participatein the development of International Standards through technical committees established by the respective organizations to deal with particular fields of technical activity.ISO and IEC technical committees collaborate in fields of mutual interest.Other international organizations,governmental and non-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 JTC 1.Draft International Standards adopted by the joint technical committee are circulated to national bodies forvoting.Publication as an International Standard requires approval by at least75%of the national bodies casting a vote. International StandardISO/IEC14568waspreparedbyJointTechnicalCommitteeISO/IECJTC1, Informationtechnology, Subcommittee SC 7, Sofiware engineering. AnnexesAtoCofthisInternationalStandardareforinformationonly ili Not for Resale