|DEX: (D003) task_set — Task Set||Date: 2010/03/25 17:49:46
This document provides the Task Set Data Exchange Specification (DEX).
OASIS PLCS TC Publications are derived from the content that is developed on DEXLIB. It is important to note that it is the publication that is the subject of standardisation and not DEXLIB. DEXLIB is a development environment for the OASIS PLCS TC.
ISO 10303-239 is part of the ISO 10303 (STEP) set of International Standards for the computer-interpretable representation of product information and for the exchange of product data. The objective of ISO 10303 is to provide a neutral mechanism capable of describing products throughout their life cycle. This mechanism is suitable not only for neutral file exchange, but also as a basis for implementing and sharing product databases, and as a basis for archiving.
ISO 10303-239 PLCS - Product Life Cycle Support specifies an information model that defines what information can be exchanged and represented to support a product through life. Examples of such information are:
The Task Set DEX enables the exchange of all information required for describing a set of typical tasks. The information provided by the population of a Task Set DEX may subsequently be used for planning and executing work on actual serialized products.
The exchange is assumed to be between the main product developer and the customer/end-user.
Tasks are defined during the Logistics Support Analysis (LSA) in response to expected maintenance requirements. Tasks might be refined or modified in light of experience and changing design or support solution.
A task may refer to other tasks. The referred task may either be a pre- or post condition task or specify a task that is describing an often repeated and therefore, separately defined task step.
NOTE This DEX is suitable for the representation of numerous types of tasks, but in this first edition, it only describes maintenance tasks. In the future it will be developed to specify operational tasks and other types of tasks.
NOTE Life-cycle information, in the respect of successive refinement of a Task Set, has not been included in this edition.
NOTE Exchanges between product developers (as opposed to developers and customer/end-users) will be dealt with in later edition.
NOTE The exchange of a Task Set (a collection of, not necessarily related, tasks) can be achieved by producing an exchange file containing a single PLCS message (representing_message) with multiple task specifications according to the Task Set DEX included.
The information exchanged by the Task Set DEX is normally between a product developer and a customer/end-user. It is assumed that each party has access to the Product Configuration Information, including breakdowns, equipments, components, effectivities etc.
Product Configuration Information can be exchanged using the following DEXs;
NOTE The above DEXs are at a draft specification. These DEXs have yet to be published.
The DEX comprises the following sections:
Further information about DEXs and the technical details on how they are structured can be found in the PLCS Help and Information Pages.
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