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VPEC-T analysis is a thinking framework comprising a collection of mental filters or guides. It provides a "simplified ‘language’ for preventing loss in translation from business needs to IT solutions" and is used when analyzing the expectations of multiple parties having different views of a system in which they all have an interest in common, but have different priorities and different responsibilities. System, here is used in the broad sense of a set of interacting or interdependent entities, real or abstract, forming an integrated whole. It is applied to 'systems' that range from those as small as a performance appraisal, to ones as large as a criminal justice system. VPEC-T ("vee-pec-tee") is used where interaction between agents and communication between parties can easily result in ambiguity. This form of analysis is particularly applicable where it is likely that the interaction and communication context is unordered, complex or chaotic, and liable to result in misunderstanding. It is identified as a new way of carrying out Enterprise Architecture,〔 〕 and also identified as a way to design services.〔 〕 VPEC-T was first conceived as a framework to aid those studying information systems, where the conflicting viewpoints of the parties involved could be a barrier to proper understanding. Examples of such situations are frequently found at the business/information technology (I.T.) divide.〔Nigel Green, Carl Bate, (2007) Lost in Translation: A handbook for information systems in the 21st century. (Evolved Technologist Press) ISBN 0-9789218-4-4〕 Since the 1990s, I.T. has stolen the place of Information Systems but I.S. and I.T. are not the same. I.T. is about computers and programs. I.S. encompasses everything that will surround I.T. for the tasks to be properly completed - people, processes and information.〔 〕 == The principles on which VPEC-T is founded == VPEC-T is named after the initial letters of the five elements on which it focuses: Value, Policies, Events, Content and Trust. These elements are present in all information systems and most will be present in some form even in simpler communications. Each of the parties involved in describing, discussing or seeking to understand a system, actual or planned, will view it in the conceptual framework with which they are familiar. Each party will usually have a different view of the values of the system; their knowledge of the policies embodied in it will vary according to their responsibilities; they may know of only a subset of the events handled by the system; and they are unlikely to know of all content required, as content will not always be formal and recognized. Finally, there is the important question of trust that the parties have for one another, and trust that the system will meet its expected outcomes. A lack of trust between the parties can affect the success of the system in cases where information is not revealed, commitment to using the system is not whole-hearted or maintaining 'shadow systems'.〔 For example, where the analysis in question is a preliminary step in understanding an information system, the parties involved will include both the business and the Information Technology (IT) functions of an organization. Of necessity the language of business users of an information system embraces ambiguity, tacit knowledge and willingness to change: Business must operate in the environment of a constantly changing market. Of necessity the language of the IT function embraces high specification, certainty and avoidance of change: The IT function must minimize change to systems that require cost, time and risk to implement.〔 The different conceptual frameworks and associated language of these two groups can cause difficulties in unambiguous communication. This will likely surface as conflict at some time during an information system's life cycle. 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「VPEC-T」の詳細全文を読む スポンサード リンク
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