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Enterprise and Technology Architectures

Copyright © 2009. 55 pages.
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DOI: 10.4018/978-1-59904-802-4.ch006
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MLA

Chew, Eng K. and Petter Gottschalk. "Enterprise and Technology Architectures." Information Technology Strategy and Management: Best Practices. IGI Global, 2009. 167-221. Web. 29 Jul. 2014. doi:10.4018/978-1-59904-802-4.ch006

APA

Chew, E. K., & Gottschalk, P. (2009). Enterprise and Technology Architectures. In E. Chew, & P. Gottschalk (Eds.) Information Technology Strategy and Management: Best Practices (pp. 167-221). Hershey, PA: Information Science Reference. doi:10.4018/978-1-59904-802-4.ch006

Chicago

Chew, Eng K. and Petter Gottschalk. "Enterprise and Technology Architectures." In Information Technology Strategy and Management: Best Practices, ed. Eng K. Chew and Petter Gottschalk, 167-221 (2009), accessed July 29, 2014. doi:10.4018/978-1-59904-802-4.ch006

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Abstract

The role of integrated enterprise architecture in IT strategy and strategic alignment is explained in Chapter V. This chapter describes in detail the principles and methods for developing a business-aligned enterprise architecture that will define the roadmap to attain the future state of the enterprise envisioned by the business strategy and guide the IT investment portfolio necessary for the state change.
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Introduction

The role of integrated enterprise architecture in IT strategy and strategic alignment is explained in Chapter V. This chapter describes in detail the principles and methods for developing a business-aligned enterprise architecture that will define the roadmap to attain the future state of the enterprise envisioned by the business strategy and guide the IT investment portfolio necessary for the state change.

Enterprise architecture can be understood from the terms enterprise, architecture, and architecture framework defined by the Open Group Architecture Framework (TOGAF, 2007):

Enterprise is defined as any collection of organizations that has a common set of goals and/or a single bottom line.

Architecture is defined as a formal description of an information system, organized in a way that supports reasoning about the structural properties of the system. It defines the components or building blocks that make up the overall information system and provides a plan from which products can be procured, and systems developed, that will work together to implement the overall system.

Architecture framework is a tool for assisting in the production of organization-specific architectures. An architecture framework consists of a Technical Reference Model, a method for architecture development, and a list of component standards, specifications, products, and their interrelationships, which can be used to build up architectures. Architecture framework will speed up and simplify architecture development.

Enterprise architecture is a formal description of the enterprise business context, including the business strategy and the supporting information system architecture which aligns with the business context. Enterprise architecture therefore defines a model of the fundamental technology and process structure of a business-aligned IT strategy. Enterprise architecture allows business to devise solutions to achieve cost efficiency and business innovation. It provides the strategic context for the evolution of the information system in response to changing market and business needs (TOGAF, 2007).

A generic architecture framework is needed to help firms define the firm-specific enterprise architecture. An architecture framework is critical to the definition of business and IT strategies. This is because it provides structure and discipline and provides a vehicle for communication of the strategic imperatives in an integrative and holistic manner, functionally analogous to the working of a real-life enterprise. It serves as a translator and integrator of critical business and IT concepts by which business and IT executives will be able to articulate the congruence of business and IT strategies1 and how, at a high level, IT will implement that strategy. This is one of the first tasks of strategic alignment. In particular, as a communication tool, the architecture framework enables the enterprise business and IT executives to exchange their understanding of the respective strategies in a high level graphically and multidimensionally integrative way, combining business and technology concepts fundamental to defining the unique way in which the enterprise seeks to operate in the crowded marketplace. It will remove any potential misunderstanding that could occur if each executive were to simply use the one-dimensional English language descriptions of business and IT strategies. This business-IT dialog using the architecture framework will lead to an agreement on the value and benefits of the enterprise architecture (EA) because the EA is a manifestation of the business/IT strategies (eTOM, 2005; James, Handler, Lapkin, & Gall, 2005; OMG, 2003; POSIX, 2000; RM-ODP, 1997; Ross et al., 2006; Spewak, 1992; TOGAF, 2007; Zachman, 1987).

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Complete Chapter List

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Chapter 1
Eng K. Chew, Petter Gottschalk
A general understanding of business firms is required in order to be able to develop business and IT strategies. This chapter will present the... Sample PDF
Theories and Models of Business Firms
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Chapter 2
Eng K. Chew, Petter Gottschalk
Building on the understanding of the theories and models of firms, this chapter reviews the basic principles of strategic management of business... Sample PDF
Strategic Management Principles
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Chapter 3
Eng K. Chew, Petter Gottschalk
Over the last several decades, strategy researchers have devoted attention to the question of how corporate elites (i.e., corporate executives and... Sample PDF
Strategic Alignment, IT Value, and Organizational Analysis
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Chapter 4
Eng K. Chew, Petter Gottschalk
As discussed in Chapter III, a successful IT strategy must align with the business, fully at every stage of the end-to-end strategic management... Sample PDF
Critical Success Factors of IT Strategy
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Chapter 5
Eng K. Chew, Petter Gottschalk
Chapter IV defines the macromodel for achieving business/IT alignment. This chapter defines the detailed methodology for each step of the IT... Sample PDF
Strategic Alignment for Business Value Creation
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Chapter 6
Eng K. Chew, Petter Gottschalk
The role of integrated enterprise architecture in IT strategy and strategic alignment is explained in Chapter V. This chapter describes in detail... Sample PDF
Enterprise and Technology Architectures
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Chapter 7
Eng K. Chew, Petter Gottschalk
The previous chapters describe how IT strategy and enterprise architecture can be defined in line with business strategy. The success of business... Sample PDF
Strategic Programs: Planning and Execution
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Chapter 8
Eng K. Chew, Petter Gottschalk
As introduced in Chapter II and Chapter V, performance differences across firms can be attributed to the variance in firms’ resources and... Sample PDF
Strategic IT Resources and Sourcing Strategy
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Chapter 9
Eng K. Chew, Petter Gottschalk
In many organizations, information technology has become crucial in the support, sustainability, and growth of the business. This pervasive use of... Sample PDF
The CIO Enabling IT Governance
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Chapter 10
Eng K. Chew, Petter Gottschalk
The Global CEO Survey by IBM (2006) shows that two thirds of the CEOs anticipate significant change to their companies over the next two years. The... Sample PDF
Business Innovation and Information Management
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Chapter 11
Eng K. Chew, Petter Gottschalk
As described in Chapter X, fundamental to the company’s innovation capabilities is the level of collaboration and knowledge management capabilities... Sample PDF
Innovation and Driven Knowledge Management
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Chapter 12
Eng K. Chew, Petter Gottschalk
This chapter is about the “know-how” part of IT strategy and management best practices. This case example aims to illustrate a successful practical... Sample PDF
Business-Aligned IT Strategy Case Example: CLP Group, Hong Kong
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