ISO INTERNATIONAL STANDARD 10303-22 First edition 1998-12-15 Industrial automation systems and integration Product data representation and exchange Part 22: Implementation methods: Standard data access interface Systemes d'automatisation industrielle et integrationReprésentation et échangededonnees deproduit- Partie 22:Methodes de mise en application: Interface normalisée d'acces auxdonnées ISO Reference number ISO10303-22:1998(E) ISO 10303-22:1998(E) Contents page 1 Scope 2 Normative references 2 3 Definitions and abbreviations . 3 3.1 Terms defined in ISO 10303-1 3 3.2 Terms defined in ISO 10303-11 3 3.3 Otherdefinitions. 4 3.3.1 application schema 4 3.3.2 concurrent access . 4 3.3.3 constraint . 3.3.4 current schema 4 3.3.5 external schema 4 3.3.6 foreign schema 4 3.3.7 identifier 4 3.3.8implementation class 4 3.3.9 iterator ... 4 3.3.10 native schema 4 3.3.11 repository 4 3.3.12schemainstance 4 3.3.13 SDAI-model 4 3.3.14 SDAI language binding 4 3.3.15 SDAI schema 5 3.3.16 session . 5 3.3.17 validation 5 3.4 Abbreviations . 5 4 SDAIoverview. 4.1Data access interfaces 5 4.2Operations andthesession state.. 5 4.3Repositories,schemainstances,and SDAI-models 5 4.4Transactions and access modes 6 4.5 The session, data dictionary and managing a population 7 4.6 SDAI parameter data schema.. 8 4.7Functional specification. 8 4.8 SDAI language bindings 9 4.9 Error handling 10 5Fundamental principles 10 @ISO1998 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 microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56.CH-1211Geneve 20·Switzerland Internet [email protected] Printed in Switzerland ii ISO10303-22:1998(E) @ISO 6SDAIdictionaryschema 11 6.1 Introduction .... 11 6.2Fundamental concepts and assumptions 12 6.3 SDAI dictionary schema type definitions 12 6.3.1 base_type 12 6.3.2constructed_type 12 6.3.3 underlying_type 13 6.3.4 type_or_rule 13 6.3.5 explicit_or_derived 13 6.3.6express_id.. 13 6.3.7 info_object_id 14 6.4 SDAI dictionary schema entity definitions 14 6.4.1 schema_definition 14 6.4.2interface_specification 15 6.4.3interfaced_item. 15 6.4.4 explicit_item_id 16 6.4.5 used_item 16 6.4.6 referenced_item 16 6.4.7 implicit_item_id 17 6.4.8external_schema. 17 6.4.9 domain_equivalent_type 18 6.4.10 named_type 18 6.4.11 defined_type 19 6.4.12 entity_definition 19 6.4.13 attribute 20 6.4.14 derived_attribute 21 6.4.15explicit_attribute 21 6.4.16 inverse_attribute 22 6.4.17 uniqueness_rule 22 6.4.18 where_rule 23 6.4.19 global_rule 23 6.4.20 simple_type 24 6.4.21 number_type 24 6.4.22 integer_type 24 6.4.23 real_type.. 25 6.4.24 string_type 25 6.4.25 binary_type. 26 6.4.26 logical_type 26 6.4.27 boolean_type 26 6.4.28enumeration_type 27 6.4.29 select_type 27 6.4.30 aggregation_type 27 6.4.31variable_size_aggregation_type 28 6.4.32 set_type 28 6.4.33 bag_type 28 6.4.34 list_type 29 6.4.35 array_type 29 6.4.36 bound 30 6.4.37population_dependent_bound 30 ili