DCAT version 1 supported cataloging of Datasets. Two of the Use Cases describe the need to also support cataloguing of Services:

• DCAT Distribution to describe web services - ID6
• Modeling service-based data access - ID18

There is evidence of use of complicated, indirect approaches to resolve this in existing deployments - see #116 (comment) #166 (comment)

The following issues have discussed aspects of the problem and links between Datasets, Distributions and Distribution services in the context of a DCAT Catalog: #56, #116, #124, #145, #166
Some of these discuss potential solutions before the requirements have been clearly articulated and agreed.

This issue is to clarify the scope of DCAT. When this has been clarified we can then determine the best way to meet the requirements, through creative use or adaptation of the existing vocabularies, or by adding some classes and properties to DCAT, or some other method.