University of Twente Student Theses


Enterprise Architecture Transformation: Roadmap Plan Analysis and Visualization

Kurniawan, Iwan (2014) Enterprise Architecture Transformation: Roadmap Plan Analysis and Visualization.

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Abstract:As the environment of the market is constantly changing, organizations are required to adapt to the technology advancement, demanding customers, aggressive competitors and regulatory changes. Aligning business and information technology is then an important factor to have this adaptation or transformation phase as effective as possible. Enterprise Architecture (EA) is a way to design and communicate the desired organizational changes related to the business strategy and to implement these changes across the operational structures, processes and systems of the organization’s business and IT domain. Study on depicting enterprises’ architecture, including IT landscapes, is extensive. Although several researches have extensively elaborated on the enterprise architecture (e.g. comprehensiveness of the EA and maturity of EA development processes), the transformation phase has received little attention, especially on migrating from baseline architecture to target architecture. Therefore, this thesis aims to improve further on the enterprise architecture transformation, by focusing on the development of roadmap plan. The roadmap plan is intended to help visualize the alternative/possible paths of going from baseline architecture to target architecture. The thesis identifies and analyses problems of the current guideline and support provided by EA framework, EA modeling language and selected existing EA tools. TOGAF and ArchiMate have been selected as the EA framework and modeling language, respectively, for their wide implementation in the industry and access openness to public. BiZZdesign Architect is used as the main EA tool of reference due to its certified alignment to the standards (TOGAF and ArchiMate). Two problems have been selected to be further addressed: (1) aggregating to a relation problem and (2) consolidated gaps, solutions and interdependency matrix problem. The first problem derives from the fact that the existing ArchiMate definition of the plateau concept does not allow a relationship between two components to be aggregated (included) to the plateau. In practice, this condition is needed to show that the interactions among components, that are valid to a certain plateau, could also be valid and need explicit aggregation representation. The second problem is about the lack of clarity in dealing with the Consolidated Gaps, Solutions, and Dependencies matrix as described in the EA framework. The matrix is used as a planning tool when creating the work package. Although the actual matrix has been provided, the approach of how to prioritize the work packages could be made more concrete. The thesis proposes solutions, or so called artifacts, to address these two selected problems. The first artifact is the extension or modification to plateau concept definition in ArchiMate. It accommodates the necessity of having aggregation relationship between the plateau and the relationship among the components belonging to the plateau. The second artifact is the gaps portfolio valuation in the form of 7-step approach. The approach is proposed to help the process of making the consolidated gaps, solutions and interdependency matrix more concrete. The end iii result of the approach is the prioritized groups of the gap components which need to be closed by the enterprise in order to reach its target architecture. The proposed approach is applied by means of a case study demonstration. ArchiSurance case study is used for the demonstration of the second artifact: gaps portfolio valuation. As for the evaluation purpose, three experts are consulted for their knowledge and opinion about the proposed solutions. Among the evaluation criteria used are correctness, completeness, feasibility, ease of understanding, and usefulness. In general, the experts agree that the solutions are needed in practice and provide sufficient level of correctness and completeness. Several remarks are given to further improve the solutions, such as treating relationship as a concept to avoid the complexity and confusion of ternary relationship. Finally, the thesis provides both academic and industrial contributions by proposing solutions which deal with both conceptual and practical concerns.
Item Type:Essay (Master)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:85 business administration, organizational science
Programme:Business Information Technology MSc (60025)
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