5806 (ISO International Standard INTE RNATIONAL ORGANIZATION FOR STANDARDIZATION ME XAYHAPOAHAR OPrAHW3AUMA nO CTAHAAPTW3AUWW-ORGANISATION INTERNATIONALE DE NORMALISATION Information processing - Specification of single-hit decision tables Traitement de I'information -- Spécification des tables de decision a une reponse First edition -- 1984-12-15 UDC 681.3 : 16 Ref. No. ISO 5806-1984 (E) SO 5806-1984 (E) Descriptors : data processing, information interchange, decision tables, specifications. Price based on 14 pages Copyright International Organization for Standardization ed without license from IHS Not for Resale Foreword ISo (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member mental and non-governmental, in liaison with IsO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by least 75 % approval by the member bodies voting. International Standard ISO 5806 was prepared by Technical Committee ISO/TC 97, Informationprocessingsystems. International Organization for Standardization, 1984 ? Printed in Switzerland CopyrihenationarganizatirStandardizatio on or networking permited without license from IHS Not for Resale INTERNATIONAL STANDARD ISO 5806-1984 (E) Information processing Specification of single-hit decision tables Scope and field of application 3.5 "ELSE"-rule: The actions to be taken for all combi- nations of conditions not covered by the other rules in the This International Standard specifies the basic format of single- table. NOTE -- The use of the ELSE-rule facility is optional. recommended conventions for preparation and use. NOTES condition: A description of a contingency to be con- 3.6 1 This International Standard is concerned with the use of decision sidered in the representation of a problem, or a reference to tables in the context of the documentation of computer-based infor- other procedures to be considered as part of the condition. mation systems. It is not concerned with other uses, such as for the representation of program statements 3.7 action: A description of an operation to be taken in the 2 The format and conventions for the preparation and use of formulation of a solution. "multiple-hit"' decision tables are outside the scope of this International Standard. 3.8 condition entry: An indication of the relevance of a condition to a particular rule. 2 References 3.9 action entry : An indication of the relevance of an action Iso 2382, Data processing -- Vocabulary - to a particular rule. Part 1: Fundamental terms. Part 7: Digital computer programming. 3.10 condition stub: A list of all the conditions to be con- sidered in the description of a problem. 3 Definitions 3.11 action stub: A list of all the actions to be taken in the solution of a problem. For the purpose of this international Standard the following definitions apply. 3.12 table heading: The symbolic name or other means of referencing a decision table from other documents. Alterna- decision table: A table of all contingencies that are to 3.1 tively, or in addition, a clear description of the tabte. be considered in the description of a problem together with the action to be taken (from ISO 2382/1). 3.13 initialisation section: An optional list of unconditional actions to be executed sequentially before the first condition is 3.2"single-hit" decision table: A decision table where any examined; it may be written in the row which follows that of set of conditions will be satisfied by one, and only one, rule. the table heading. 3.3 "multiple-hit" decision table: A decision table where 3.14 limited entry table: A decision table where all the con- at least one set of conditions wil be satisfied by more than one dit