The Radiology Informatics System Procurement (RISP) Programme has organised a number or workshops to define the Radiology Service functional requirements and develop an Output Based Specifications (OBS) as part of the process of writing an Outline Business Case. To succeed this, we have worked closely with the PACS/RIS Managers, Clinical Radiology users, Business Managers, Admin/Clerical and Secretarial Leads to gather their requirements of the new system.