Life cycle data for process plant: Reference data for observations and measurements: Introduction


Life cycle data for process plant: Reference data for observations and measurements	ISO/WD 15926-x:200x(E)

Cover page
Table of contents
Copyright
Foreword
Introduction
1	Scope
2	Normative references
3	Terms, definitions, abbreviations and symbols

4	Observations and measurements reference data
	4.1	Introduction to observations and measurements reference data
	4.2	Observing activity
	4.3	Information
	4.4	Temporal part and time
	4.5	Variation of property
	4.6	Monitoring activity
	4.7	Monitoring criterion

A	Information object registration
B	Document URN
C	Reference data relationships
D	Reference data as OWL
E	Temporal part example
Bibliography
Index

Introduction

ISO 15926 is an International Standard for the representation of process plant life-cycle information. This representation is specified by a generic, conceptual data model that is suitable as the basis for implementation in a shared database or data warehouse. The data model is designed to be used in conjunction with reference data: standard instances that represent information common to a number of users, process plants, or both. The support for a specific life-cycle activity depends on the use of ap-propriate reference data in conjunction with the data model.

ISO 15926 is organized as a number of parts, each published separately. This part of ISO 15926 specifies a set of classes and relationships that enable the recording of observations and measurements using ISO 15926-2. This set of classes and relationships is a reference data library (RDL).

This part of ISO 15926 makes use of classes and relationships for topology defined within ISO/TS 15926-3.

This part of ISO 15926 provides:

a normative textual definition of the objects in the reference data library (or ontology) for observations and measurements (in clause 4);
computer-interpretable listing of the objects in the following formats;
- a normative representation of the relationships between the objects as EXCEL spreadsheets (in Annex C);
- an informative computer-interpretable listing of the objects as an OWL ontology (in Annex D);

NOTE The computer-interpretable listings define only the relationships between objects. The computer-interpretable listings make reference to the text of part of ISO 15926 for natural language definitions.