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Architecture scenario analysis - Estimating the credibility of the results
KTH, Skolan för elektro- och systemteknik (EES), Industriella informations- och styrsystem.
KTH, Skolan för elektro- och systemteknik (EES), Industriella informations- och styrsystem.ORCID-id: 0000-0003-3922-9606
KTH, Skolan för elektro- och systemteknik (EES), Industriella informations- och styrsystem.
2007 (Engelska)Ingår i: 17th Annual International Symposium of the International Council on Systems Engineering, INCOSE 2007 - Systems Engineering: Key to Intelligent Enterprises, The International Council on Systems Engineering (INCOSE), 2007, s. 750-764Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Good decision support requires good information. A key aspect of good information is that it is credible. Presently, architecture frameworks and methods within systems engineering often lacks support for mediating the credibility of the analyses made. This paper presents a method for enterprise architecture analyses that employs an evidential reasoning algorithm for multi-attribute decision analysis. By doing this, the quality of the analyses as decision support is demonstrated. The method includes an assessment framework, based on established theories, for evaluating architecture scenarios functional and non-functional qualities. The paper also presents a full scale case study where method has been employed at a large European power company.

Ort, förlag, år, upplaga, sidor
The International Council on Systems Engineering (INCOSE), 2007. s. 750-764
Nyckelord [en]
Architecture frameworks, Decision supports, Enterprise Architecture, Evidential reasoning, Multi-attribute decision analysis, Non-functional, Power company, Scenario analysis
Nationell ämneskategori
Data- och informationsvetenskap
Identifikatorer
URN: urn:nbn:se:kth:diva-7538Scopus ID: 2-s2.0-84878030679ISBN: 978-160560119-9 (tryckt)OAI: oai:DiVA.org:kth-7538DiVA, id: diva2:12593
Konferens
17th Annual International Symposium of the International Council on Systems Engineering, INCOSE 2007; San Diego, CA; United States; 24 June 2007 through 28 June 2007
Anmärkning

QC 20100608

Tillgänglig från: 2007-10-03 Skapad: 2007-10-03 Senast uppdaterad: 2018-01-13Bibliografiskt granskad
Ingår i avhandling
1. Business Value Assessment of IT Investments: An Evaluation Method Applied to the Electric Power
Öppna denna publikation i ny flik eller fönster >>Business Value Assessment of IT Investments: An Evaluation Method Applied to the Electric Power
2007 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

s the dependence of IS/IT has grown in modern organizations, IT investments have soared in the last couple of decades. Large amounts of money are spent with the hope that the investments will generate value for the business organizations using the systems. It is hence easy to understand the needs for methods to assess the business value of IT-investments. The investment decision is basically about selecting the best IT-system or the best combination of IT-systems, i.e. the system(s) that provides the most business value in dimensions that are important business-wise. However, a problem with many of the avail-able methods is that they often fail to concretely explain what technical characteristics the IT systems(s) should have to achieve the business value desired. A complicating aspect of IT-investment evaluations is also that the evaluations usually include a high degree of un-certainty.

In this thesis, an IT investment evaluation method is presented that indicatively assesses the differences in contribution to business value from IT-investment alternatives. The method provides, at a relatively low cost of investigation, indications of not only the technical differences between the IT-investment alternatives in a specific investment situation, but also an assessment of the differences in types and amounts of their business value. The presented method has been applied in a large case study at an electric power company. Furthermore, it also incorporates concepts found within Enterprise architecture (EA), particularly in how the information used in the evaluation is collected.

The presented thesis is a composite thesis that, besides an introduction, includes five papers (paper A-E). Paper A presents an outline of the method as well as its application in the case study. It also presents the theoretical fundaments for the criteria used for the technical evaluation and the business value assessment including the method’s applications in relation to Enterprise architecture. The following two papers primarily present necessary steps in the development of the method. First, paper B presents the process to develop a functional reference model (used for the functional assessments in the method), including its application in the case study. Second, a breakdown of the term business value into a set of IS/IT-affected value dimension is presented in paper C. The last two papers present the final steps, i.e. the technical evaluation of the investment alternatives (paper D) and the final business value assessment (paper E). The papers include the methods to perform these analyses as well as the application of the method in the case study and the results of the case study.

Ort, förlag, år, upplaga, sidor
Stockholm: KTH, 2007
Serie
Trita-EE, ISSN 1653-5146 ; 2007:50
Nyckelord
IT-investments, IT-investment evaluation, Business value assessments, Enterprise architecture, Technical evaluation of IT systems, Electric power industry
Nationell ämneskategori
Annan maskinteknik
Identifikatorer
urn:nbn:se:kth:diva-4505 (URN)
Disputation
2007-10-30, Sal F3, KTH, Lindstedtsvägen 26, Stockholm, 10:00
Opponent
Handledare
Anmärkning
QC 20100608Tillgänglig från: 2007-10-03 Skapad: 2007-10-03 Senast uppdaterad: 2010-06-08Bibliografiskt granskad

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