Information Technology Reference
In-Depth Information
ment in terms of
performance
versus
deliverables
. Understanding PRM and the busi-
ness drivers behind PRM is equally important for government and those wishing to
do business with the U.S. government.
10.3.1.2 Business Reference Model
The BRM is a framework within which to articulate the business structure and its
intent. The FEA BRM includes 4 business areas, 39 lines of business, and 153 sub-
functions. The business areas convey the purpose for government, how to achieve
the purpose, support functions, and resource management functions. The lines of
business convey the purpose of government in functional terms. The subfunctions
are a further decomposition of the lines of business.
The BRM provides context and conditions to relate business processes to mis-
sion; this is a functional view. The BRM provides four business areas:
n
n
n
n
Services for citizens—purpose of government
Mode of delivery—mechanisms to achieve purpose
Support of service delivery—operational support
Government resource management
Lines of business (LOBs) are the products of granular decomposition of BRM
business areas. FEA distinguishes between internal LOBs and external LOBs, but
refers to them collectively as just LOBs. Of the 39 LOBs, 19 are for service to
citizens; these are also considered external LOBs. The 20 internal LOBs describe
functions necessary to provide service to citizens. Each LOB is in turn a collection
of subfunctions.
10.3.1.3 Service Component Reference Model
The SRM is a framework to capture details of business components, applications,
application capabilities, services, and mechanisms to evaluate the potential for
reuse of any of these elsewhere throughout the enterprise. A business component
may be an environment that can accept the addition of a new software application.
The implication is that the cost of generating the new software application does not
have to include the environment to make it available to the enterprise as that envi-
ronment already exists. An application may be a software application or a solution
that uses multiple software applications. The details of the SRM are separate from
the business functions.
The SRM is a business-driven framework to classify service components that
support business (BRM) and performance (PRM) components. There are 7 service
domains and 30 service types. The service domains are:
