Enterprise architecture framework

Draft

Introduction

An enterprise architecture (EA) framework is a "language" that allows to describe the architecture of organizations.

Wikipedia (retrieved June 22, 2010) describes “An enterprise architecture (EA) [as] a rigorous description of the structure of an enterprise, its decomposition into subsystems, the relationships between the subsystems, the relationships with the external environment, the terminology to use, and the guiding principles for the design and evolution of an enterprise.[1][2][3] This description is comprehensive, including enterprise goals, business functions, business process, roles, organisational structures, business information, software applications and computer systems. [...] Enterprise architects use various business methods, analytical techniques and conceptual tools to understand and document the structure and dynamics of an enterprise. In doing so, they produce lists, drawings, documents and models, together called "artifacts". These artifacts describe the logical organization of business functions, business capabilities, business processes, people organization, information resources, business systems, software applications, computing capabilities, information exchange and communications infrastructure within the enterprise.”

See also: workflow, change management and process notation/execution languages like BPEL and BPMN

Examples of EA frameworks

The Open Group Architecture Framework

According to Wikipedia, The Open Group Architecture Framework (TOGAF) is based on four pillars, called domains:

• architecture or business process architecture which defines the business strategy, governance, organization, and key business processes of the organization
• architecture which provides a blueprint for the individual application systems to be deployed, the interactions between the application systems, and their relationships to the core business processes of the organization with the frameworks for services to be exposed as business functions for integration.
• architecture which describes the structure of an organization's logical and physical data assets and the associated data management resources
• architecture or technology architecture which describes the hardware, software and network infrastructure needed to support the deployment of core, mission-critical applications. (retrieved 16:59, 23 June 2010 (UTC))

Layers of enterprise architecture. Source: Niles E Hewlett (2006) via Wikipedia

An interesting TOGAF topic concerns architecture development including change management:

TOGAF Architecture Development Method. Source: S. Marley, NASA via Wikipedia

The Zachman frameworks

“The Zachman Framework is an Enterprise Architecture framework for enterprise architecture, which provides a formal and highly structured way of viewing and defining an enterprise. It consists of a two dimensional classification matrix based on the intersection of six communication questions (What, Where, When, Why, Who and How) with six rows according to reification transformations.” (Wikipedia, retrieved 17:08, 23 June 2010 (UTC)).

Zachman Framework circa 2009, Source: Wikipedia

Business motivation model

The Business Motivation Model (BMM) developed by Object Management Group defines the what, why and how for an organization. In more operational terms it defines the ends, the means, influences (pro/against) and assessments.

Source: Nick Malik / OMG

Links

Some Wikipedia links

• Enterprise architecture
• enterprise architecture framework
• Enterprise modeling, the abstract representation, description and definition of the structure, processes, information and resources of an identifiable business, government body, or other large organization.
• Business processes
• Business process modeling, the activity of representing processes of an enterprise, so that the current process may be analyzed and improved. See also BPMN.
• Business architecture
• Process architecture
• Operating Model
• architecture domains
• TOGAF
• Open Source Enterprise Architecture Tools

Introductions

• Niles E Hewlett (2006), The USDA Enterprise Architecture Program. PMP CEA, Enterprise Architecture Team, USDA-OCIO. January 25, 2006. PPT
• [ http://blogs.msdn.com/b/nickmalik/archive/2009/01/09/an-examination-of-the-omg-business-motivation-model.aspx An examination of the OMG Business Motivation Model] by Nick Malik, Jan 2009.