International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Fault Dependency (D)-matrix is a systematic diagnostic model which is used to capture the fault system information at the hierarchical system-level. It consist dependencies between observable symptoms and failure modes associated with a system. Whenever user type any query for searching any file or data, most probably all the files or data trying to match its search query with title of available data and constructs a D-matrix. Proposed system describes an ontology based text mining method for automatically constructing and updating a D-matrix by mining hundreds of thousands of repair verbatim (typically written in unstructured text) collected during the diagnosis episodes.