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To read Part I of this feature, click here.
Defining "enterprise"
Putting enterprise architecture in context requires one to understand two distinct
concepts: architecture, which we already looked at, and an enterprise. Simply
put, an enterprise is any collection of organizations that has a common set
of goals and/or a single bottom line. Based on this definition, an enterprise
could be a government agency, a whole corporation, a division of a corporation,
a single department, or a chain of geographically distant organizations linked
together by common ownership. Nowadays people often refer to the concept of
an extended enterprise, which not only includes the organization itself but
also includes the organization's partners, suppliers, and customers.
Moving on to enterprise architecture
The MIT Center for Information Systems Research defines enterprise architecture
as "the organizing logic for business processes and IT infrastructure reflecting
the integration and standardization requirements of the firm's operating model."
As you might notice, this eloquent definition brings together the key concepts
from both the "architecture" and "enterprise" descriptions.
Stated differently, enterprise architecture is the blueprint that translates
an enterprise's strategic goals and operating model into an executable architecture
of processes and infrastructure. If this reads like a mouthful, just imagine
the complexity of actually defining and then implementing the enterprise architecture.
As luck would have it that is exactly where enterprise architecture frameworks
such as TOGAF help save the day. Enterprise architecture frameworks such as
TOGAF encapsulate a broad body of knowledge in the form of standard methods,
defined processes, common vocabulary, guidelines, best practices, case studies,
tools, and technologies that enable the architect in designing and implementing
the right enterprise architecture.
So without further ado, let's examine TOGAF, one of the leading enterprise
architecture frameworks available today.
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