It describes the "current architecture" and "target architecture" to include the rules and standards and systems life cycle information to optimize and maintain the environment which the agency wishes to create and maintain by managing its IT portfolio.

WHITEHOUSE: CIRCULAR NO. A-130 Revised

Agencies must incorporate security into the architecture of their information and systems to ensure that security supports agency business operations and that plans to fund and manage security are built into life-cycle budgets for information systems.

WHITEHOUSE: CIRCULAR NO. A-130 Revised