Enterprise architecture and enterprise architecture artifacts: Questioning the old concept in light of new findings

摘要

Enterprise architecture is a description of an enterprise from an integrated business and IT perspective intended to bridge the communication gap between business and IT stakeholders and improve business and IT alignment. Enterprise architecture consists of multiple different artifacts providing certain views of an organization and the available enterprise architecture literature offers a number of comprehensive lists of artifacts that can be used as part of an enterprise architecture practice. However, these lists of enterprise architecture artifacts were never validated empirically and the practical usage of different artifacts still remains largely unexplored. Based on a comprehensive empirical analysis of enterprise architecture artifacts used in 27 diverse organizations, this study identifies the list of 24 common artifacts that proved useful in practice and describes in detail their usage and purpose. Although this study does not attempt to theorize on the findings, it makes a significant empirical contribution to the enterprise architecture discipline. In particular, this study (I) provides the first consistent list of enterprise architecture artifacts that actually proved useful in organizations, (2) offers the first available systematic description of their usage, (3) questions the common view of enterprise architecture as a set of business, information, applications and technology architectures and (4) questions the widely accepted conceptualization of enterprise architecture as a set of the current state, future state and transition roadmap. This study provides compelling empirical evidence in favor of reconceptualizing enterprise architecture and calls for further research in this direction.