Accession Number : ADA186414

Title :   Self-Adaptive Data Bases.

Descriptive Note : Annual rept. Sep 86-Sep 87,

Corporate Author : COLORADO UNIV AT BOULDER DEPT OF COMPUTER SCIENCE

Personal Author(s) : King, Roger

PDF Url : ADA186414

Report Date : 21 Sep 1987

Pagination or Media Count : 3

Abstract : Over the past year, significant progress has been made, including the completion of a prototype database management system, and the publication of several papers. The central contribution of this system, called Cactis, is that it is the first database system to introduce elegant and efficient means for managing derived data. The goal of Cactis is to provide this support within the context of a self-adaptive database implementation. The project has also spawned a number of related efforts. The DBMS is being tested with a complex application, one that is of significant interest to the current research community - software environment technology. Other progress includes the development of a graphical interface to Cactis, one that maintains the philosophy of self-adaptiveness, by allowing the interface to adapt to the needs of a particular user. As an effort independent of Cactis, a system called Moby is under development. It is being coded in lisp, and is an exiperiment in extending database technology to include the one sort of derived data that Cactis cannot maintain - rule - based data. A final effort this year has been directed toward the support of complex constraints in the Cactis system. As many constraints may be represented as derived data, Cactis is a natural medium for this experimentation. This project is in cooperation with the Naval Ocean Systems Center in San Diego.

Descriptors :   *DATA BASES, *PROTOTYPES, COMPUTER PROGRAMS, INTERFACES, MANAGEMENT PLANNING AND CONTROL, COMPUTER GRAPHICS

Subject Categories : Computer Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE