This part of ISO 29481 specifies a methodology and format for the development of an information delivery manual (IDM). This part of ISO 29481 specifies - a methodology that unites the flow of construction processes with the specification of the information required by this flow, - a form in which the information should be specified, and - an appropriate way to map and describe the information processes within a construction life cycle. This part of ISO 29481 is intended to facilitate interoperability between software applications used in the construction process, to promote digital collaboration between actors in the construction process and to provide a basis for accurate, reliable, repeatable and high-quality information exchange.