The increasing availability of COTS (commercial-off-the-shelf) components in the market of software development has concretized the opportunity of building whole systems based on previously built components. Component-Based Software Engineering (CBSE) is an approach which is used to improve efficiency and productivity of software system with the help of reusability. CBSE approach improves software development productivity and software quality by selecting pre-existing software components. Reusability in Component-Based Software Development (CBSD) not only reduces the time to market in development but also brings the cost down of development heavily. This paper represents the challenges which are faced by software developer during component selection like reliability, time, components size, fault tolerance, performance, components functionality and components compatibility. This paper also summarizes algorithms used for component retrieval according to availability of component subset.

Gill, N. S. and Tomar, “Software Component Technology: An Easy Way to Enhance Software Reusability”, proceedings of 94th Indian Science Congress Conference, Annamalai University, Tamilnadu, INDIA, pp. 18-19 in 2007.
Voas, J. and Agresti, W. W. 2004. Software quality from a behavioral perspective. IT Professional, 6,4 (July 2004), 46–50.
IEEE Standards Board (1990). “IEEE Standard Glossary of Software Engineering Terminology”, Computer Society of the IEEE.
G. Ruhe, "Intelligent Support for Selection of COTS Products,", LNCS, Springer, vol. 2593 2003. pp. 34-45
Mohamed, Abdallah Sami Abbas Shehata. Decision support for selecting COTS software products based on comprehensive mismatch handling. Diss. University of Calgary, 2007.
Pande, Jeetendra, Christopher J. Garcia, and Durgesh Pant. "Optimal component selection for component based software development using pliability metric." ACM SIGSOFT Software Engineering Notes 38.1 (2013): 1-6.
Kaur, A. and Mann, K.S. 2010. Component selection for component based software engineering. International Journal of Computer Applications, 2, 1(2010),109–1sssssss14.

@article{Nitish04021003,
title = " Issues and Concerns In Software Component Selection ",
journal = "International Journal of Science and Engineering Applications (IJSEA)",
volume = "4",
number = "2",
pages = "40 - 42",
year = "2015",
author = " Nitish Madaan,Jagdeep Kaur ",
}