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IT Service Management (ITSM) tackles the problem of the ever rising complexity of IT solutions by defining small manageable fields of duty with clear responsibilities. The de facto standard in this field is the IT Infrastructure Library (ITIL). One of ITIL's important tools is the Service Portfolio Management (SPM) which aligns the IT to the business and serves as an interface to the customer. Another means for handling complex IT systems are Enterprise Architectures (EA). EA are widely used for strategic planning, documentation and analysis of enterprises in general and IT solutions in particular. This paper proposes an approach that connects EA and ITSM by utilizing EA for SPM. The approach described in this paper enables automated generation of user-group-specific Service Catalogs from EA models. By this means the number of information sources is reduced, which increases the efficiency and reduces the error-proneness of information maintenance. Moreover the reuse of the EA models in the context of SPM is facilitated which aligns both processes and improves the organizational efficiency. The paper presents a proof of concept implementation using the Nato Architecture Framework (NAF)

Enterprise Architecture-Based Service Portfolio Management for Automated Service Catalog Generation