Abstract
AbstractUsing Commercial Off‐The‐Shelf (COTS) products to build software systems requires the evaluation of existing COTS products, the selection of the COTS that best fit system requirements, and the integration of the selected COTS into the system. During this process, it is inevitable to encounter two types of mismatches: (1) COTS mismatches, which are encountered during COTS selection between requirements and COTS features, due to an excess or shortage of COTS features, and (2) architectural mismatches, which arise when integrating multiple COTS products that do not fit well together. This paper focuses on the ‘COTS mismatch’ problem. The paper describes a real‐world case study of a single COTS selection with the aid of a method called MiHOS (Mismatch Handling for COTS Selection) to handle the COTS mismatches. MiHOS runs on top of existing COTS selection models in order to properly address COTS mismatches with limited resources. The case study was conducted in the e‐service domain. The goal was to validate MiHOS and to answer two key questions: (1) How useful is decision support during different phases in the process mismatch handling? And (2) what is the effort vs benefit of using MiHOS? The results are promising and illustrate the potential benefits of using MiHOS. Copyright © 2011 John Wiley & Sons, Ltd.
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