Software systems now-a-days are composed from prefabricated commercial components and connectors that offer complex functionality and hold in complex interactions. Unfortunately, because of the diverse assumptions made by developers of these products, fruitfully integrating them into a software system can be difficult often causing budget and plan overruns. A number of integration risks can often be determined by selecting the ‘Right’ set of COTS (Commercial Off-The-Shelf) mechanism and connectors that can be integrated with minimal effort. In this paper, the authors illustrate a framework for selecting COTS software components and connectors ensuring their interoperability in software thorough systems.