This publication, Department of the Army Pamphlet DA PAM 602-2 Guide for Human Systems Integration in the System Acquisition Process December 2018, provides advice and recommendations for implementing Human Systems Integration practices. This pamphlet has been prepared for force modernization, branch proponents, materiel developers, program/project/product managers, and Human Systems Integration action officers and leaders—professionals who co-ordinate, guide, implement, and manage Human Systems Integration in the acquisition of automated information systems and/or materiel systems. DODI 5000.02 and AR 602–2 require that a comprehensive management and technical strategy for Human Systems Integration (HSI) be initiated early in the acquisition process, specifically in the Technology Development and Engineering and Manufacturing Development (EMD) phases within the Defense Acquisition System. The formal entrance point for the EMD phase is at Milestone (MS) B approval and it is this milestone that marks the initiation of an acquisition program. The HSI Program is the Army's implementation of the direction given by the Under Secretary of Defense for Acquisition, Technology, and Logistics for HSI and the Army's compliance with Title 10, United States Code (10 USC). The program was established in 1984 with a primary objective to place the human element (functioning as individual, crew/team, unit, and organization) on equal footing with other design criteria such as hardware and software. The entry point of HSI in the acquisition process is through the capability based assessments (CBAs) or other studies to assess capability requirements and associated capability gaps.