With the improvement of internet technologies and multimedia resources, traditional learning has been replaced by distance learning, web-based learning or others' e-learning learning styles. According to distance learning, there are many research organizations and companies who make efforts in developing the relevant systems. But they lack…

Investigates new design options for extended schema versioning support for multitemporal relational databases. Discusses the improved functionalities they may provide. Outlines options and basic motivations for the new design solutions, as well as techniques for the management of proposed schema versioning solutions, includes algorithms and…

Trident Technical College developed a process using microcomputers to produce certificates for competency-based curricula. At the beginning of the process, criteria were set for the program. A software program was needed that used available computers, was easy to use, and produced a competency statement that was easy to read and interpret. A…