Abstract
Requirement interdependency is being extensively studied with greater interest in software engineering research. However, existing tools and techniques have not properly characterized and visualized the requirement interdependency relationships between requirements. This research introduces ontology based representation of requirement inter-dependencies among requirements, and formal graphical notation for proper visualization of requirement interdependencies. There is evidence to point out that Ontology based approach is better technique for managing the requirement interdependency i.e., diagrammatic representation of requirement interdependency will improve the quality of software and will reduce the failure rates.