The language of choice for the script was Perl, a UNIX scripting language. The small script allows users to search for papers by author, year, keyword, category and technical report number. The results of the search may be sorted on these fields and shown with or without abstracts. If a hyperlink exists for a paper it is included to allow users to jump directly from the search results to the paper. Mani Kanchera A major limitation of conventional testing is that it can only show the presence of errors, but never their absence.
Testing is a process of verifying that a program does what it is supposed to do.
In other words, a program is correct if it meets all of its requirements. We claim that a program is partially correct if it exhibits all the properties stated in the requirements specification. We suggest a new method of testing software based on the formal specification. After developing the PVS specification, we specify the properties stated in the requirements as conjectures. The PVS proof checker provides a collection of proof commands that can be combined to form proof strategies.