In this project we aim to build an assessment delivery engine to the IMS Question and Test Interoperability version 2.1 specifications that can be deployed as a stand-alone web application or as part of a SOA enabled VLE. The engine will provide for: delivery of an assessment consisting of an assembly of QTI items, scheduling of assessments against users and groups, delivery of items using a web interface, including marking and feedback, and a Web service API for retrieving assessment results. In the second phase, the project will integrate with the other projects in this call on item banking and item authoring to provide a demonstrator, and will contribute to its evaluation and the evaluation of the project and its integration with the other projects under the Assessment call.