Enterprise Architecture Executive Handbook - U.S. Coast Guard

Appendix B: Legacy EA Comparison
COMDTINST 5401.5 established the office of CG-6. COMDTINST 5230.68 established Enterprise
Architecture policy and followed CG-6 policy.
The table below, Legacy to Current EA Crosswalk, shows how the current CGEA implementation aligns
with and maps to the legacy implementation while expanding capabilities and improving effectiveness of
the program.
This document and the products described herein are designed to provide practices implementation
aligned to existing policy. Portions of the policy have not been fully implemented in the past, so this
document provides the implementation for the current release. It also provides a bridging mechanism from
the legacy EA structure to the present and on to the future when further policy is established.
Some examples of these new implementations are the EAB, PSB, and CGEA CM Plan. These boards and
the plan provide the functions pf the Enterprise Architecture Management Board (EAMB) and the Change
Control Board (CCB) listed in the policy while working with the rest of the policy structure. Updated
terminology, roles, and structures provide for the improved capabilities of the program in other areas as
shown below.
Legacy to Current EA Crosswalk
Category Legacy Current
Value Proposition Ensure that C4&IT systems are
matched to USCG mission/
business needs and goals.
Alignment
(primary)
Department of Defense
Architecture Framework (DoDAF)
Methodology Proprietary User-centric EA
Delivery Channels
(primary)
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Improve the effectiveness and overall
governance of C4&IT decisionmaking,
including alignment to
mission/business needs and goals.
Federal Enterprise Architecture
(FEA) at the enterprise level; DoDAF
at the segment and solution levels as
appropriate
EA Links on CG Central CGEA Knowledge Center and
Executive Handbook
Framework Various CGEA Framework
Levels of Detail • Enterprise
• Profiles (high-level)
• Mission/Function
• Project
Product Framework “EA Framework – Work Products”
shows legacy product arranged in
a matrix made of ten categories
(see Perspectives below) and
broken into three levels of detail.
• Models (mid-level)
• Inventories (detailed catalogs)
CGEA products Framework with
products in six perspectives (aligned
with FEA plus security broken out)
and three levels of detail.