Multimedia data modeling and database design for project delay management
Construction contracting is often subject to delays and potential claim situations. A system that enables project performance data to be modeled and manipulated can help in the management of project delays. This article proposes such a system based on Nijssens Information Analysis Methodology (NIAM) and utilizing multimedia data. NIAM modeling begins by defining pertinent facts and represents them in Conceptual Schema Diagrams (CSDs); then defines constraints of two types: uniqueness constraints and mandatory/optional roles constraints. Individual CSDs are combined to produce complete NIAM CSD representations for each problem, and uniqueness and mandatory role constraints are added. These now can be transformed into a relational database schema that can be modeled and displayed using pictorial data and verbal descriptions. This formal approach to data and information modeling promotes the concept of automated management of multimedia data in support of project delay management.