Treasury Information System Architecture Framework: Difference between revisions

Revision as of 17:31, 23 December 2011

Revision as of 00:17, 3 January 2013

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== TISAF building blocks ==

=== Departmentwide architecture framework ===

According to TISAF, a complete architecture has the following four components, each representing a different [[Perspective (visual)|perspective]] or [[Graphical projection|view]] of the agency:<ref name=" GOA98"/>

* ''Functional'': A representation of what the organization does (i.e., its mission and business processes) and how the organization can use information systems to support its business operations.

* ''Work'': A description of where and by whom information systems are to be used throughout the agency.

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The Infrastructure is the "enabler" of information systems which describes the supporting services, computing platforms, and internal and external interfaces needed to provide technology environments within which information systems run.<ref name="Raines97"/>

To provide a context for discussing technical standards, a [[Technical Reference Model]] (TRM) is developed to organize and depict building blocks of an information system as a set of services categorized by functional areas.<ref name="Raines97"/>

== TISAF 1997 to TEAF 2000 ==