This document provides the descriptions and the EML document instances of the use cases provided by the members of the IMS Learning Design Group. In order to develop the Learning Design Specification, EML is used as the base for the specification. Participants of the IMS Learning Design Group (e.g. Cisco, WebCT, Pennstate, OUNL) described their use cases about 'Units-of-learning'. This means that they described their vision about learning, which they need in their institute or company. EML was examined to see if it was possible to model all those different views of learning in EML. We were able to model the logic and intities of all the use cases. When possible we have split the use case into separate intities, like knowledge objects, sub units of study, etcetera. The top level unit of study acts as a containing framework for the underlying sub models. Sometimes the use cases describe features, which are properties of XML, regardless of the schema used; for instance, the fact that one can edit, stor, convert of publish a file. Because all EML examples are XML document istances, these features are evident.