Abstract
Our aim is to realise an agent-based Grid simulator for studying "Grid Query OptimisationStrategies". The purposes of this document are the following:
* To identify some HEP use cases and, based on these use cases and requirements, to identifysome user-level and Grid-level query optimisation opportunities.
* To define an architecture for the simulator, in which the components and services are integrated with components and services, specifically targeted toquery optimisation.
* To define how the components and services in the simulator interact in order to performoptimisation based on the identified optimisation opportunities.