I am doing custom iWidget development in IBM Case Manager 5.0, using Java Script and DOJO 1.6. I am using Content Management Interoperability Services (CMIS) to carry out Create/ Retrieve/ Update/ Delete operations on objects such as document, folder that persist in FileNet P8 Content Engine object store. However I am not able to create custom objects in P8 using CMIS as CMIS object model does not support the notion of 'Custom Object' that is used to hold only metadata in P8. Can anyone please suggest if there is a workaround? Also is it technically feasible to develop a custom REST based service, deploy that on the WAS (Websphere Application Server), and use it from the iWidget DOJO base UI (which is a part of the Mashup environment - the case client application), by making AJAX based calls? The intention here is to develop a REST based service that will accpet HTTP requests from the DOJO based UI, carry out custom operations as per the request on Custom Objects in P8 using the CE Java APIs, and send the response back in the form of XML/ JSON. Any suggestions/ pointers to appropriate resources will be highly appreciated. Thanks in advance! - Rational12.