|
Enterprise architecture (EA) is "a well-defined practice for conducting enterprise analysis, design, planning, and implementation, using a holistic approach at all times, for the successful development and execution of strategy. Enterprise architecture applies architecture principles and practices to guide organizations through the business, information, process, and technology changes necessary to execute their strategies. These practices utilize the various aspects of an enterprise to identify, motivate, and achieve these changes.".〔Federation of EA Professional Organizations, ''(Common Perspectives on Enterprise Architecture )'', ''Architecture and Governance Magazine'', Issue 9-4, November 2013 (2013). Retrieved on November 19, 2013.〕 Practitioners of enterprise architecture, ''enterprise architects'', are responsible for performing the analysis of business structure and processes and are often called upon to draw conclusions from the information collected to address the goals of enterprise architecture: effectiveness, efficiency, agility, and durability.〔(Pragmatic Enterprise Architecture Framework, PEAF Context )〕 == Overview == In the enterprise architecture literature and community, there are various perspectives in regards to the meaning of the term ''enterprise architecture''. As of 2015, no official definition exists; rather, various organizations (public and private) promote their understanding of the term. Consequently, the enterprise architecture literature offers many definitions for the term enterprise architecture; some of which are complementary, others nuances, and others yet are in opposition.〔Mentz, J, Van der Merwe, Alta, & Kotze, Paula. (2012) "(A Comparison of Practitioner and Researcher Definitions of Enterprise Architecture using an Interpretation Method )". In: ''Advances in Enterprise Information Systems II'', C. Møller & S. Chaudhry eds., CRC Press, p. 11-26〕 The MIT Center for Information Systems Research (MIT CISR) in 2007 defined enterprise architecture as the specific aspects of a business that are under examination: :''Enterprise architecture is the organizing logic for business processes and IT infrastructure reflecting the integration and standardization requirements of the company's operating model. The operating model is the desired state of business process integration and business process standardization for delivering goods and services to customers''.〔MIT Center for Information Systems Research, Peter Weill, Director, as presented at the Sixth e-Business Conference, Barcelona Spain, March 27, 2007, ()〕 The Enterprise Architecture Body of Knowledge defines enterprise architecture as a practice, which :''analyzes areas of common activity within or between organizations, where information and other resources are exchanged to guide future states from an integrated viewpoint of strategy, business and technology.''〔Enterprise Architecture Book of Knowledge, Planning an EA - Purpose, (), retrieved on October 3, 2014.〕 IT analysis firm Gartner defines the term as a discipline where an enterprise is led through change. According to their glossary, :"Enterprise architecture (EA) is a discipline for proactively and holistically leading enterprise responses to disruptive forces by identifying and analyzing the execution of change toward desired business vision and outcomes. EA delivers value by presenting business and IT leaders with signature-ready recommendations for adjusting policies and projects to achieve target business outcomes that capitalize on relevant business disruptions. EA is used to steer decision making toward the evolution of the future state architecture."〔(Gartner IT Glossary – Enterprise Architecture (EA) ). Gartner.com. Retrieved on July 29, 2013.〕 Each of the definitions above underplay the historical reality that enterprise architecture emerged from methods for documenting and planning information systems architectures, and the current reality that most enterprise architecture practitioners report to a CIO or other IT department manager. In a business organization structure today, the enterprise architecture team performs an ongoing business function that helps business and IT managers to figure out the best strategies to support and enable business development and business change – in relation to the business information systems the business depends on. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Enterprise architecture」の詳細全文を読む スポンサード リンク
|