FSAM

The Federal Segment Architecture Methodology (FSAM) is an enterprise architecture process for developing and using segment architectures.

FSAM High-Level Overview

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Levels of Architecture Model

An Enterprise Architecture model can be created at different levels of detail and scope:

  • An Enterprise level model (an Enterprise Architecture) covers the whole organisation or extended organisation.
  • A Segment level model (a Segment Architecture) is a subset of an Enterprise Architecture model for a specific programme or business domain within an organisation.
  • A Solution level model (a Solution Architecture) is a subset of an Enterprise Architecture model and may also be a subset of a Segment Architecture model.

Definitions

  • According to TOGAF 9, a segment architecture is 'A detailed, formal description of areas within an enterprise, used at the program or portfolio level to organize and align change activity'.
  • According to the FSAM web site, a segment architecture is "A detailed results-oriented architecture (baseline and target) and a transition strategy for a portion or segment of the enterprise"

The FSAM supports all three segment types as defined in the OMB FEA Practice Guidance:

  • A core mission area segment represents a unique service area defining the mission or purpose of the agency. Core mission areas are defined by the agency business model (e.g., tactical defense, air transportation, energy supply, pollution prevention and control, and emergency response).
  • A business service segment includes common or shared business services supporting the core mission areas. Business services are defined by the agency business model and include the foundational mechanisms and back office services used to achieve the purpose of the agency (e.g., inspections and auditing, program monitoring, human resource management, and financial management).
  • An enterprise service segment includes common or shared IT services supporting core mission areas and business services. Enterprise services are defined by the agency service model and include the applications and service components used to achieve the purpose of the agency (e.g., knowledge management, records management, mapping/GIS, business intelligence, and reporting).

The FSAM consists of process steps for developing a core mission area segment architecture. The FSAM also includes guidance for tailoring the approach to develop business service and enterprise service segment architectures.'

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