The steep price of high quality software prevents libraries from using them. To tackle this issue many library communities have developed software that are free of cost. They are known as free/open source software which are widely available on the internet, and can be downloaded, installed and distributed freely.

Literature review is an essential part of academic research project. It is a careful examination of a body of literature pointing towards the answer to the research question. Literature covers everything relevant that is written on a topic: books, journal articles, newspaper articles, historical records, government reports, theses and dissertations etc. It includes scholarly journal, scholarly books, authoritative databases and primary sources.