Principles are general rules and guidelines, intended to be enduring and seldom amended, that inform and support the way in which an organization sets about fulfilling its mission.
In their turn, principles may be just one element in a structured set of ideas that collectively define and guide the organization, from values through to actions and results.
Depending on the organization, principles may be established at any or all of three levels:
- Enterprise principles provide a basis for decision making throughout an enterprise, and inform how the organization sets about fulfilling its mission. Such enterprise-level principles are commonly found in governmental and not-for-profit organizations, but are encountered in commercial organizations also, as a means of harmonizing decision making across a distributed organization.
- Information Technology (IT) principles provide guidance on the use and deployment of all IT resources and assets across the enterprise. They are developed in order to make the information environment as productive and cost-effective as possible.
- Architectural principles are a subset of IT Principles that relate to Architecture work. They reflect a level of consensus across the enterprise, and embody the spirit and thinking the enterprise architecture. Architectural principles can be further divided into:
- Principles that govern the architecture process, affecting the development, maintenance, and use of the enterprise architecture; and
- Principles that govern the implementation of the architecture, establishing the first tenets and related guidance for designing and developing information systems.
These sets of principles form a hierarchy, in that IT principles will be informed by, and elaborate on, the principles at the enterprise level; and architectural principles will likewise be informed by the principles at the two higher levels.
The remainder of this subsection deals exclusively with architectural principles.
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