While the decision to outsource software development tasks was mainly considered strategically and economically, it relies on technical properties of single components and their integrability into complex systems, as well. This paper suggests a decision model that evaluates technical properties of software components to support the outsourcing decision with its implications on the cross-organizational distribution of development tasks. Following a design science approach decision criteria are deduced and logically combined in order to design a decision model. The model is then used to implement a mobile prototype for a decision support system in order to classify all software components regarding their outsourcing applicability. Both model and tool are evaluated in depth: we examine the quality of model and tool in a naturalistic and experimental evaluation setting. The overall satisfaction with utility, ease of use and intention to use is very positive.
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