ISO/TS 22745-30:2009 産業オートメーションシステムと統合—オープンな技術辞書とそのマスターデータへの応用—パート30：識別ガイドの表現 | ページ 2

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 body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

In other circumstances, particularly when there is an urgent market requirement for such documents, a technical committee may decide to publish other types of normative document:

• • an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in an ISO working group and is accepted for publication if it is approved by more than 50 % of the members of the parent committee casting a vote;
• • an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting a vote.

An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an International Standard or be withdrawn.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO/TS 22745-30 was prepared by Technical Committee ISO/TC 184, Automation systems and integration, Subcommittee SC 4, Industrial data.

A complete list of parts of ISO 22745 is available from the Internet:

Introduction

ISO 22745 specifies a system for descriptive technology consisting of:

• • open technical dictionary (OTD);
• • identification guide (IG);
• • master data;
• • identification scheme;
• • procedures for maintenance of an OTD;
• • interfaces for querying information from an OTD, including terminology related to a given concept.

An OTD is a collection of terminology defined by and obtained from consensus bodies such as ISO, IEC, and other groups that have a consensus process for developing terminology. An OTD contains terms, definitions, and images of concepts used to describe individuals, organizations, locations, goods and services. Within ISO 22745, an item is described through membership in a class and a set of property-value pairs.

An OTD:

• • allows properties to be unambiguously defined in an ISO 10303 file;
• • allows information to be unambiguously defined and exchanged between multi-national partners without loss of meaning;
• • supports synchronization of databases with minimum data mapping requirements;
• • provides transparent information flow among multiple information formats and specifically between government and commercial systems;
• • provides timely and accurate data that can be used to support finance and accounting processes;
• • supports cost-effective sourcing;
• • supports inventory management and rationalization;
• • provides for both commercial and intra-governmental transactions;
• • supports multiple units of measure and international currencies;
• • supports multiple classifications and multiple languages.

Any consensus organization can submit terminology for inclusion in an OTD. ISO 22745 does not establish a new process for standardizing terminology. Each OTD will have a globally unambiguous identifier for each concept and provide a reference back to the original source for terminology (terms, definitions and images). OTDs are designed to link terms and definitions with the same semantic content and to reference the original source of each term and definition. Thus, OTDs are intended not to duplicate existing standards, but to provide comprehensive collections of terminology used to describe individuals, organizations, locations, goods and services.

Although the process for harmonizing terminology is outside the scope of ISO 22745, an OTD can serve as a useful research tool to aid the harmonization process, e.g., between ISO, IEC and other standards.

An IG specifies which concepts can be used and constrains which concepts can be linked to each other. An example for the latter is when an IG specifies the properties which can be linked to a class. Furthermore, an IG can specify which terms, definitions and images are applicable, in a case where there are multiple terms, definitions and images for concepts.

A catalogue contains a list of descriptions of items, which at the most basic level consists of property-value pairs. Each item is described by associating a class with a series of properties and a property will in turn be associated with property values depending on the representation associated with the property.

See ISO 22745-1 for a more detailed overview of ISO 22745.

The model for datatypes (see Clause 7) is based on ISO/IEC 11404.

1 Scope

This part of ISO 22745 specifies a conceptual information model for identification guides and the datatypes necessary to support identification guides. This part of ISO 22745 also specifies an Extensible Markup Language (XML) exchange structure for identification guides. The conceptual model is in the Unified Modeling Language (UML). The physical file format is based on the Extensible Markup Language (XML).

The following are within the scope of this part of ISO 22745:

• • conceptual model for identification guides;
• • exchange format for identification guides.

The following are outside the scope of this part of ISO 22745:

• • conceptual model and exchange format for OTDs;

  NOTE 1 See ISO/TS 22745-10 for a conceptual model and exchange format for OTDs.

• • conceptual model and exchange format for catalogues.

  NOTE 2 See ISO/TS 22745-40 for a conceptual model and exchange format for catalogues.

The conceptual model and the exchange format specified for identification guides by this part of ISO 22745 can also be used by any standard that describes products and services by means of ontologies of classes and properties. The use of the modeling resources provided by these models would enable data recipients to specify with greater precision the kind of information they require for those products or services they are looking for.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 22745-2 apply.

Bibliography