ConceptBase is a deductive object-oriented database system intended for the management of metadata. A distinguishing feature of the Telos language underlying ConceptBase is the abi...
Matthias Jarke, Manfred A. Jeusfeld, Hans W. Nisse...
We have developed a 3D sound system for headphones that allows real-time sound source and user displacement in a virtual acoustic environment. Because of a flexible design that us...
Requirements engineering is an important phase in a system's life cycle. When poorly performed, various problems may occur, such as failures, cost overrun and delays. The incr...
: The activities developed in this paper were aimed at providing an awareness of the elements that should be considered in quality learning objects instructional design for elearni...
There exist several recent approaches that leverages the use of model transformations during software development. The existence erent kinds of models, at different levels of abst...