Henk Schaap (DL) Dashboard - Confluence. Idm.buildingsmart.no/confluence/download/attachments/446/IDM2_Methodology.pdf?version=1. IDM Methodology - Confluence. The intent of the Methodology is to present the reasons for development of the Information Delivery Manual (IDM), describe its components, define a methodology to be used in their development and provide useful information about how to create and use its various parts. It provides a complete reference that steps through the ideas and parts of the IDM. It describes or provides: reasoning behind why the IDM was developed. component structure of the IDM and explains the way in which this structure meets the information exchange needs of users and solution providers.