Introduction

This DEX enables the exchange of all information required for describing a single typical task. This task specification shall then be used for planning and executing work on an actual product.

The exchange is assumed to be between the main product developer and the customer/end-user.

Tasks are defined during the LSA in response to expected maintenance requirements. They might be refined or modified in light of experience and changing design or support solution.

A task specification may refer to other task specifications, either as pre-/post condition tasks or as task specification that is describing a task step (collection of tasks).

NOTE    In the first instance, this DEX is only described in the light of a maintenance task. In future it will be developed to specify operational and other types of tasks.

NOTE    Life-cycle information, in the respect of successive refinement of a task specification, has not been included in this issue.

NOTE    Exchanges between product developers will be dealt with later.

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 message and muliple DEX003 specifications.