Foreword

ISO/PDTS 10303-1071 was prepared by Technical Committee ISO/TC 184, Industrial automation systems and integration, Subcommittee SC4, Industrial data.

This International Standard is organized as a series of parts, each published separately. The parts of ISO 10303 fall into one of the following series: description methods, integrated resources, application inter-preted constructs, application modules, application protocols, abstract test suites, implementation methods, and conformance testing. The series are described in ISO 10303-1. A complete list of parts of ISO 10303 is available from the Internet:

http://www.nist.gov/sc4/editing/step/titles/.

Annexes A and B form an integral part of this part of ISO 10303. Annexes, C, D, E, aand F are for information only.

Introduction

This application module is concerned with activities. An activity can be:

• a manufacturing activity carried out on a product;
• an operation activity carried out by a product;
• a maintenance activity carried out on a product;
• a decommissioning activity carried out on a product;
• a design or analysis activity carried out by people, perhaps with the aid of a computer (in this case the 'change' is the recording of new information).

An activity is a period in the life of a product, or looked at in another way, a product performs an activity for a period of its life.

EXAMPLE - The activity that is 'hammering my nail into my plank' is a period in the life of the physical object or product that is the assembly of 'my nail', 'my plank', 'my hammer' and 'the air surrounding my nail, plank and hammer'.

Where an activity is a period in the life of an assembly of products, the different roles played by the different component physical objects can be identified. This application module can be used to store all the information about classes of activity contained within an IDEF0 diagram.

EXAMPLE - In the activity that is 'hammering my nail into my plank', the product 'my hammer' has the role of 'tool'.

The assembly of 'my nail', 'my plank' and 'my hammer' has a sequence of states during the activity. In the final state, 'my plank' has deformed such that 'my nail' has penetrated it with the head flush to the surface.

An activity has a set of states, such that the product that performs the activity passes through the states in turn. An activity has an initial state, a final state and a sequence of intermediate states.

Industrial automation systems and integration —
Product data representation and exchange —
Part 1071: Application module: Activity

1 Scope

This application module supports the definition of an activity specification or individual activity. The following are within the scope of this application module:

• the role of a product specification within an activity specification;

  EXAMPLE - The activity 'bird strike on compressor XYZ' has a component activity 'impacting bird in strike on compressor XYZ'. This component activity is a role of the product 'standard bird type B_1'.

• the role played by an individual product within an individual activity.

  EXAMPLE - The individual activity 'bird strike test T_1234' has a component individual activity 'impacting bird in test T_1234'. This component individual activity is a role of the individual product that is the defrosted dead chicken used in test T_1234.

The following are not within the scope of this application module:

• behaviour, which is a set possible activities for a product;
• the role played by a person or organisation in an activity;
• a property of an activity;

  NOTE - A property of an activity is defined in the possession of property module. A property distribution over a space of activities is defined in the property distribution module.

• a date and time stamp for an individual activity.