CRITICAL-TIME/REAL-TIME DATABASE MANAGEMENT

THE RESEARCH WILL EXPLORE DESIGNING A SOFTWARE ARCHITECTURE CAPABLE OF PROVIDING CRITICAL-TIME QUERY RESPONSE. THE FIRST TWO PERSON-MONTHS WILL BE SPENT DEFINING THE ATTRIBUTES OF THE ENVIRONMENT AND DESIRED FUNCTIONALITY. FOR EXAMPLE, THE FOLLOWING APPEAR TO BE ATTRIBUTESOF THE ENVIRONMENT IN WHICH SUCH A SYSTEM MUST OPERATE: L. THE DATA IS DISTRIBUTED AND STORED IN HETEROGENEOUS HARDWARE/SOFTWARE ENVIRONMENTS IN ORDER TO ACCOUNT FOR THE FACT THE SYSTEM WILL NEED TO BE EASY TO MODIFY TO TAKE ADVANTAGE OF NEW TECHNOLOGY IN A TIMELY MANNER. 2. SOME UPDATES TO CRITICAL DATA WILL BE MADE INDEPENDENT OF THE SYSTEM PROVIDING THE QUERY MECHANISM. 3. SOME DATA IS REPLICATED AND CONSEQUENTLY UPDATES TO ONE DATABASE FROM SOME INDEPENDENT APPLICATION MUST BE DETECTED AND UPDATES IN SEMANTICALLY RELATED DATABASES MADEACCORDINGLY. 4. SOME UPDATES ARE MORE IMPORTANT/TIME-CRITICAL THAN OTHERS. 5. DATABASES STORED IN DIFFERENT SCHEMAS/SYSTEMS HAVE DIFFERENT LEVELS OF INTEGRITY THE LAST FOUR MONTHS WILL FOCUS ON PROTOTYPING A SOFTWARE ARCHITECTURE TO SUPPORT CRITICAL-TIME QUERY IN THIS TYPE OF ENVIRONMENT. THE CONTRACTOR WILL USE TECHNIQUES DEVELOPED IN THE PROCESS OF CREATING AN EXTENSIBLE SET OF SOFTWARE TOOLS FOR AUTOMATING THE GENERATION OF PROGRAMS WHICH PERFORM DATA CONVERSION IN THE DEVELOPMENT OF THIS PROTOTYPE.