Information Technology Reference
In-Depth Information
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Buy and install in-house
Hire a service to perform capability in-house
Hire a service to perform capability externally (e.g., managed ser-
vice provider)
Technical capability
Does the proposed technical capability exist elsewhere endo-organiza-
tionally?
If so, why create another one?
Can the initial capability be reused in whole? In part? Why or why not?
Does the proposed technical capability exist elsewhere exo-organiza-
tionally?
Can we purchase the capability exo-organizationally?
What are the trade-offs among build, buy, and lease?
What is the total cost of ownership (TCO) among:
Build in-house
Buy and install in-house
Hire a service to perform capability in-house
Hire a service to perform capability externally (e.g., managed ser-
vice provider)
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PfM is both a capability and investment management process that attempts to
avoid redundant expenses for the enterprise. The mantra for PfM is “Invest once,
leverage many times.” There may be a specific IA PfM, or the enterprise PfM may
integrate an IA view in business and technical solutions.
2.11.5
[IA] Enterprise Systems Engineering
Enterprise systems engineering (ESE) is the interim step between concept of opera-
tions and design. ESE examines the enterprise fit including enterprise interoper-
ability and integration. IA ESE examines the enterprise fit of IA services and IA
mechanisms and how they address enterprise technical risks as well as business
risks. Systems engineering (SE) focuses on a single system, whereas ESE focuses on
the enterprise collection of systems.
2.11.6
[IA] Design
The architecture provides the business drivers. The CONOPS provides an enterprise
business context. PfM provides an enterprise context for capability and investment
management. ESE provides a perspective of enterprise technical fit. Design gets
down to the specifics of the solution, business process, or system. Design addresses
the specifics of the services and mechanisms that comprise the desired capability.
There is a blurred distinction between SE and design. Consider SE to be a formal
