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Enterprise Architecture Best Practice Handbook:

Enterprise Architecture Best Practice Handbook

Enterprise Architecture Best Practice Handbook:


What is IT Architecture?

  • A blueprint that explains how all the Information Technology and Management elements work together as a whole
  • Provides explicit description of the current and desired relationships among business and management processes and Information Technology
  • IT Architecture contains two elements:
  • An Enterprise Architecture
  • A Technical Reference Model and Standards Profile

What is the Enterprise Architecture?


An EA is the explicit description and documentation of the current and desired relationships among business and management processes and InformationTechnology.
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.

The EA must also provide a strategy that will enable the agency to support its current state and also act as the roadmap for transition to its target environment. These transition processes will include an agency's capital planning and investment control processes, agency EA planning processes, and agency systems life cycle methodologies. The EA will define principles and goals and set direction on suchissues as the promotion of interoperability, open systems, public access, compliance with GPEA, end user satisfaction, and IT security.

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