A DATABASE MANAGEMENT SYSTEM FOR TEMPORAL DATA

IN THE PHASE I EFFORT A STUDY OF THE REPRESENTATION AND MANIPULATION SCHEMES FOR LARGE VOLUMES OF TIME DEPENDENT DATA STORED WITHIN DATABASE MANAGEMENT SYSTEMS WILL BE CONDUCTED. THE RELATIONAL DATA MODEL OF CODD WAS NOT DESIGNED TO ACCOMMODATE TIME DEPENDENT DATA AND WHILE MOST COMMERCIAL DATABASE MANAGEMENT SYSTEMS REQUIRE TIME ATTRIBUTES. THIS WILL BE ACCOMPLISHED BY A TECHNICAL LITERATURE SEARCH AND ANALYSIS OF EXISTING WORK ON TEMPORAL DATA MODELS AND PHYSICAL STORAGE SCHEMES. THE FOLLOW-ON PHASE II OF THE PROJECT WILL INVOLVE CREATING AN IMPROVED (IF NOT NEW) TEMPORAL DATA MODEL AS WELL AS PHYSICAL STORAGE SCHEME. WE WILL ALSO DETERMINE THE BEST APPROACH TO BUILDING THE PROTOTYPE VERSION OF THE SYSTEM. FINALLY A PROTOTYPE WILL BE IMPLEMENTED IN PHASE II AS WELL AS MEASUREMENT AND ANALYSIS OF ITS PERFORMANCE.