In today's environment the relevance of Free Open Source Software Systems is understood and appreciated both in academia and research. The debate about the pros and cons of the open source vis-à-vis proprietary software has been raging from ages ever since Richard Stallman founded the Free Software Foundation in 1985. With the changing trends in the domain of Object Oriented Systems there is a need to measure the fault predictability of software metrics on open source software systems. In this paper we present the results of empirical study which was conducted using open source software, JHotDraw 7.5.1. We computed the object oriented metrics, proposed by Chidamber and Kemmerer, and performed bug-class mapping for the software under study. We also studied the relationship between the revisions made to open source software and its software metrics measure.

Software needs to evolve in order to be used for a longer period. The changes corresponding to corrective, preventive, adaptive and perfective maintenance leads to software evolution. In this paper we are presenting the results of study conducted on 13 versions of JHot Draw and 16 versions of Rhino released over the period of 10 years. We measured Object Oriented Metrics and studied the changes in the measured values over different releases of two medium sized software developed using Java. We also investigated the applicability of Lehman's Law of Software Evolution on Object Oriented Software Systems using different measures. We found that Lehman's laws related with increasing complexity and continuous growth are supported by the data and computed metrics measure.

A program that automatically download pages from the World Wide Web is known as Web Crawlers or Spider programs or Bots. A crawler visits many sites to obtain data which is analyzed and mined in a location, either online or off-line. There is a need for crawlers to help applications stay as pages and connections are added, deleted, moved or modified. Crawlers can be used in applications in business intelligence. Crawlers are used by organizations to collect information about their competitors and potential collaborators. Crawlers monitor Web sites and pages of interest, so that a user or community can be notified when new information appears in certain places. The Crawlers can also be used for malicious applications, for example, to harvest email addresses to be used by spammers or collect personal information to be used in phishing and other identity theft attacks.

Specification-based testing begins with the documentation of customers' requirements. This informal depiction of requirements needs to undergo formalization for effective test case generation to corroborate specification-based testing so as to catapult validation testing. In this paper, we discuss a credible approach for test suite generation by formalizing the informal requirements that further proves prolific in pioneering effective test case generation. The endeavor is directed towards testing software in the absence of source code.

The latest technological development in web and mobile communication technology has made access to the Internet on the Internet enabled mobile handset quite simpler. But can the same be said by the less privileged section of the society measured not in terms of economic wealth but in terms of the accessibility of the resources. Therefore , in this paper we make an effort to measure the accessibility of web contents for the Physically Challenged Persons , on the mobile handsets. The efficient accessibility of web contents keeping in view the needs and requirements of the Physically Challenged Persons on the mobile handsets is one of the parameter for measuring its quality. In this paper we design and develop the Web and Mobile based Applications for the Physically Challenged Persons.