For several years people have realized the importance of archiving and finding information. With the need of computers, finding useful information from such collections has become a necessity. Information retrieval has become an important research area in the field of computer science and gained importance in several fields like business, healthcare, agriculture, medicine, law and many other fields. Information retrieval is finding material that could be in the form of a document consisting of unstructured nature that provides the required information. This research paper focuses on the need, models and the processes involved in information retrieval. A case study on INSYDER system has been proposed to gain holistic knowledge of information retrieval in the field of business.

Several types of Routing Protocols for mobile ad hoc networks have been proposed recently for their application in various areas such as military, government and many other fields. In this paper, we have proposed a comparative study of various routing protocols for mobile ad-hoc networks particularly emphasizing on its security aspect. Furthermore, we have discussed the comparison among existing routing protocols for MANET. Main factor for comparison is routing methodologies and knowledge required to make routing decisions. The comparison is made on the basis of the following factors: integrity, confidentiality, authentication, nonrepudiation and availability. Analysis of the secured version of proposed routing method has been done on the basis of the five security requirements and the same has been shown in the comparison tables.