This handbook establishes guidelines for the acquisition of new COE items and ensuring the compatibility of these items with designated COE. Further, it establishes guidelines for the contracting activity\'s use in contracting for SEE items, to ensure the compatibility of each SEE item with the contracting activity\'s designated Life Cycle Software Engineering Environment (LCSEE), and to ensure the existence of a complete life cycle support capability for application software that is to be delivered under the contract. This is for guidance only. This handbook cannot be cited as a requirement. If it is, the contractor does not have to comply.