Enterprise Architecture Executive Handbook - U.S. Coast Guard

Segment architecture is related to EA through the following three principles:
• Structure: Inherits the EA framework, although it may be extended and specialized to meet
the specific needs of a core mission area or common service.
• Reuse: Reuses important assets defined at the enterprise level including: data, common
business processes and investments, and applications and technologies.
• Alignment: Streamlines elements defined at the enterprise level, such as mission-business
strategies and processes; performance goals; and technology standards, solutions,
principles, and policies. All segment architectures align with the CGEA.
3. Solution Architecture: A solution architecture includes functions or processes within a segment, with
a focus on operational outcomes with a great level of detail. Scope is typically limited to a single
project where it is used to implement all or part of a business solution. A solution architecture is
constrained to and inherits specific technologies and standards defined at the enterprise level. Solution
architectures also provide specific definitions for data or services within a core mission or service.
These are often IT assets such as the applications or components used to improve individual business
functions. Primary stakeholders for solution architectures are system users and developers. Like
segment architecture, all solution architectures shall comply with the CGEA.
CGEA Framework
The CGEA framework shows how information is organized and structured within CGEA. The framework
consists of six CGEA perspectives as identified in the six circles of Figure 6. To show the alignment of
CGEA to the overall USCG mission, the framework incorporates the USCG seal.
Figure 6: CGEA Framework
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