This Manual contains detailed guidelines and procedures for operation of the Joint Capabilities Integration and Development System (JCIDS), and interactions with several other departmental processes to facilitate the timely and cost effective development of capability solutions for the warfighter. This Manual provides information regarding activities including identification of capability requirements and capability gaps, development of requirements documents, gatekeeping and staffing procedures, post-validation development and implementation of materiel and non-materiel capability solutions, interaction with other Department of Defense (DOD) processes, and mandatory training for personnel involved in the requirements processes. It is an essential companion to DoD Instruction DoDI 5000.02 and the Defense Acquisition Guidebook.