1、DEPARTMENT OF DEFENSE 6000 DEFENSE PENTAGON WASHINGTON,D.C.20301-6000 JAN 2 4 2022 CHIEF INFORMATION OFFICER MEMORANDUM FOR SENIOR PENTAGON LEADERSHIP COMMANDANT OF THE COAST GUARD COMMANDERS OF THE COMBATANT COMMANDS DEFENSE AGENCY AND DOD FIELD ACTIVITY DIRECTORS SUBJECT:Software Development and O
2、pen Source Software Over the last two decades,open source software(OSS)has dramatically impacted how software is designed,developed,deployed,and operated.OSS is software for which the humanreadable source code is available for use,study,re-use,modification,enhancement,and redistribution by the users
3、 of such software.There are millions of publicly-available OSS components,libraries,and applications capable of accelerat;ng software modernization activities.The Departments 2018 Cyber Strategy(attached)directed the Department to increase the use of secure OSS and to use commercial off-the-shelf to
4、ols when possible.The Departments forthcoming Software Modernization Strategy centers on the delivery of resilient software capability at the speed of relevance.OSS forms the bedrock of the software-defined world and is critical in delivering software faster.The Department must clearly articulate ho