1. The work plan has been divided in ten work packages. The key objectives of the work plan and their relationship to work packages (WP) are:
2. To review the state of the art with respect to frameworks for model integration (WP1).
3. To analyse the needs of integrated water management for linked models and hence identify the user requirement (WP2). The requirement will concentrate particularly on the shared needs of EC members, the problems that occur in modelling trans-national catchments and the facilities that will give maximum benefit to both model users and producers in terms of increased choice and market size.
4. Based on the requirement produced in WP2, to establish a standard for model linking (WP3) consisting of:
   a) A specification for the domain boundaries
   b) A specification for the software architecture for model integration
   c) A specification for a set of basic standard tools related to model integration
5. To develop the detailed design for the linkage mechanisms and component interfaces (WP4).
6. To develop the detailed designs for the generic tools (WP5).
7. To implement and test the detailed designs (WP6).
8. To prepare guidelines to enable model developers to utilise the new standard (WP7).
9. To prove the concept by migrating a selection of model components to the standard architecture - including components developed by organisations which are not taking part in the definition of the standard (WP6 and WP8).
10. To further prove the concept by linking model components from different sources and proving that the integrated models are working (WP8).
11. To disseminate information about the new standard to potential users through publications, conferences and workshops (WP9).
12. To establish a plan which will ensure that the Open Modelling Interface will continue as a living standard after the end of the project (WP9).

The co-ordination of the work of the project team (progress, deliverables) is the responsibility of WP10. The organisation of the work packages is illustrated in the following diagram. Where necessary, feedback relationships between work packages have been incorporated in the work plan.