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Enterprise architecture for IT management: a CIO decision making perspective on the electrical power industry
KTH, Superseded Departments, Electrical Systems.ORCID iD: 0000-0003-3922-9606
2004 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

Within the electric power industry, the average company's enterprise system - i.e. the overall system of IT related entities - is today highly complex. Technically, large organizations posses hundreds or thousands of extensively interconnected and heterogeneous single IT systems performing tasks that varies from enterprise resource planning to real-time control and monitoring of industrial processes. Moreover are these systems storing a wide variety of sometimes redundant data, and typically they are deployed on several different platforms. IT does, however, not execute in splendid isolation. Organizationally, the enterprise system embraces business processes and business units using as well as maintaining and acquiring the IT systems. The interplay between the organization and the IT systems are further determined by for instance business goals, ownership and governance structures, strategies, individual system users, documentation, and cost.

Lately, Enterprise Architecture (EA) has evolved with the mission to take a holistic approach to managing the above depicted enterprise system. The discipline's presumption is that architectural models are the key to succeed in understanding and administrating enterprise systems. Compared to many other engineering disciplines, EA is quite immature in many respects. This thesis identifies and elaborates on some important aspects that to date have been overlooked to a large extent. Firstly, the lack of explicit purpose for architectural models is identified. The thesis argues that the concerns of a company's Chief Information Officer (CIO) should guide the rationale behind the development of EA models. In particular, distribution of IT related information and knowledge throughout the organization is emphasized as an important concern uncared for. Secondly, the lack of architectural theory is recognized. The thesis provides examples of how theory, or analysis procedures, could be incorporated into the Enterprise Architecture approach and hereby concretely drive the development of the architectural models. Due to the nature of enterprise systems, EA theories inevitable will be of an indicative character. Finally, in relation to the models as such, three aspects are highlighted. Firstly, the cost of collecting information from the organization to populate models is routinely neglected by the EA community. This expense should be evaluated in relation to the utility of analyses that the information can provide in terms of better informed decision making by the CIO. Secondly, models (and meta-models) must be kept consistent. And thirdly, the design of models is restricted by the limited mental capabilities of the minds of the model users. CIO concerns must consequently be easy to extract from the Enterprise Architecture models.

Key words: Enterprise Architecture, Enterprise System, Chief Information Officer (CIO), Information Technology (IT) Management, Architectural Theory, Electric Power Industry

Place, publisher, year, edition, pages
Stockholm: Elektrotekniska system , 2004.
Series
TRITA-ICS, ISSN 1104-3504 ; 0402
Keyword [en]
Electronics, Enterprise architecture, Enterprise system, Chief information officer, Information technology management, Architectural theory, Electric power industry
Keyword [sv]
Elektronik
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-36OAI: oai:DiVA.org:kth-36DiVA: diva2:9427
Public defence
2004-10-28, Kollegiesalen, KTH, Valhallvägen 79, Stockholm, 10:00
Opponent
Supervisors
Available from: 2004-10-28 Created: 2004-10-28 Last updated: 2014-07-17Bibliographically approved
List of papers
1. Exploring architectural analysis credibility from a developer perspective
Open this publication in new window or tab >>Exploring architectural analysis credibility from a developer perspective
2002 (English)In: Proceedings of the Fourth Australian Workshop on Software and Systems Architecture, 2002Conference paper, Published paper (Refereed)
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-5349 (URN)
Conference
Fourth Australian Workshop on Software and Systems Architecture
Note
QC 20100621Available from: 2004-10-28 Created: 2004-10-28 Last updated: 2010-06-21Bibliographically approved
2. Consistent enterprise software system architecture for the CIO: a utility-cost based approach
Open this publication in new window or tab >>Consistent enterprise software system architecture for the CIO: a utility-cost based approach
Show others...
2004 (English)In: Proceedings of the 37th Annual Hawaii International Conference on System Sciences, 2004, 2004Conference paper, Published paper (Refereed)
Abstract [en]

Previously, business operations of most large companies were supported by a number of isolated software systems performing diverse specific tasks, from real-time process control to administrative functions. In order to better achieve business goals, these systems have in recent years been extended, and more importantly, integrated into a company-wide system in its own right, the enterprise software system. Due to its history, this system is composed of a considerable number of heterogeneous and poorly understood components interacting by means of equally diverse and confusing connectors. To enable informed decision-making, the Chief Information Officer (CIO), responsible for the overall evolution of the company's enterprise software system, requires management tools. This paper proposes enterprise software system architecture (ESSA) as a foundation for an approach for managing the company's software system portfolio. In order to manage the overwhelming information amounts associated with the enterprise software system, this approach is based on two concepts. Firstly, the approach explicitly relates the utility of knowledge to the cost of its acquisition. The utility of knowledge is derived from the increased value of better-informed decision-making. The cost of knowledge acquisition is primarily related to the resources spent on information searching. Secondly, the approach focuses on ensuring the consistency of the architectural model.

Series
Proceedings of the Hawaii International Conference on System Sciences, ISSN 1060-3425
Keyword
Companies, Computer architecture, Connectors, Costs, Decision making, History, Portfolios, Process control, Real time systems, Software systems
National Category
Computer and Information Science
Identifiers
urn:nbn:se:kth:diva-5350 (URN)10.1109/HICSS.2004.1265519 (DOI)2-s2.0-12344280935 (Scopus ID)0-7695-2056-1 (ISBN)
Conference
Hawaii International Conference on System Sciences; Big Island, HI, USA, 5-8 January 2004
Note

QC 20141211

Available from: 2004-10-28 Created: 2004-10-28 Last updated: 2017-03-30Bibliographically approved
3. Using Enterprise Architecture for CIO Decision-Making: On the Importance of Theory
Open this publication in new window or tab >>Using Enterprise Architecture for CIO Decision-Making: On the Importance of Theory
2004 (English)In: Proceedings of the Second Annual Conference on Systems Engineering Research, 2004Conference paper, Published paper (Refereed)
Abstract [en]

A company?s Chief Information Officer (CIO) is responsible for the management and evolution of the enterprise information system. An approach suggested as an aid for the CIO?s decision-making process is Enterprise Architecture, based on architectural models of both the enterprise information system and its context. For architectural models to function as decision-making support, this paper argues that they must be amenable to architectural analysis. The purpose of this paper is to demonstrate the importance of architectural theory in the analysis of architectural models of the enterprise information system. Architectural theory diagrams are proposed as means for presenting and comparing architectural theories as well as for assessing the analytical value of architectural models.

National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-91301 (URN)
Conference
Second Annual Conference on Systems Engineering Research
Note

QC 20120327

Available from: 2012-03-27 Created: 2012-03-12 Last updated: 2016-12-16Bibliographically approved
4. The architectural information view for the power electricity industry
Open this publication in new window or tab >>The architectural information view for the power electricity industry
2003 (English)In: Proceedings of the CIGRE SC D2´s Colloquium, 2003Conference paper, Published paper (Refereed)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-5352 (URN)
Conference
CIGRE SC D2´s Colloquium, Rio de Janeiro, Brazil, September 17-18, 2003
Available from: 2004-10-28 Created: 2004-10-28 Last updated: 2011-09-02Bibliographically approved
5. Making project complexity understandable: the elegance of notations
Open this publication in new window or tab >>Making project complexity understandable: the elegance of notations
2003 (English)In: Proceedings of the 12th International Conference on Management of Technology (IA-MOT), Nancy, France, 2003.: From Information to Knowledge to Competencies: Key Success Factors for Innovation and Sustainable Development. / [ed] Hosni, Y.A., Khalil, T.M., Morel-Guimaraes L., 2003Conference paper, Published paper (Other academic)
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-5353 (URN)0-9712964-5-6 (ISBN)
Note
QC 20100519Available from: 2004-10-28 Created: 2004-10-28 Last updated: 2010-05-19Bibliographically approved

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Ekstedt, Mathias

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