This paper presents a process model for the management of architectural decisions in enterprise architecture planning. First, decisions are made at the enterprise level, with strategic business considerations on the enterprise information, systems and technology strategy and governance issues. The next step is to define the domains, to then go on with domain architecture decisions. At the systems level, the enterprise and domain architecture decisions are collected and converted into architecture descriptions accurate in precision, form and detail to be given as input to the information systems development process, following the architectural planning. The model is derived from previous work and empirical findings in three large organizations, where the enterprise architecture and enterprise systems have been developed. This case study contributes with considerations on the domains, their definition, and produces refinements to an enterprise architecture process model presented before. For the development of the model, the "living system" paradigm is followed. .
Local governments cover multiple service sectors and are typically organized into diversified, deeply hierarchical organizations. Public services offered are tangible, mostly non-IT-critical, and heavily dependent on human resources. Information management is mainly manual in strategy and management processes. In this case study of a large Finnish local government organization, enterprise architecture (EA) is proposed as a tool for improving the coherency of the local government and its alignment to IT and other resources. We ask, what kind of EA descriptions local government agencies need for coherency management, and how to organize them. We apply action design research principles at the Kouvola City concern by adapting the Finnish Government EA Grid there. The business architecture is unfolded to evaluate the target state for a planned change. The results give new insights into transformation of the local government towards new public management related operation models, government-IT alignment, and further development of EA description tools and repositories for public administration use.
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