Browsing by Author "Huser, Hansjörg"
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Item Open Access SEED - a database system for software engineering environments(1985) Glinz, Martin; Huser, Hansjörg; Ludewig, JochenA data model for software engineering databases is presented. On the basis of an entity-relationship-approach, the model provides special features for complex objects, consistency, vague or incomplete information, variants, and versions. A prototype of a database system based on this model is being implemented.Item Open Access Spades - a specification and design system and its graphical interface(1985) Ludewig, Jochen; Glinz, Martin; Huser, Hansjörg; Matheis, G.; Matheis, Hans; Schmidt, M.F.SPADES is a specification system consisting of a method, a language, and a set of tools. These components are based on a set of concepts, which forms its abstract kernel. SPADES supports the specification of software systems, in particular of real time software. The system to be developed is modelled using the Entity-Relationship-concept. While this seems to be the best way for storing specifications. In a computer, it does not automatically lead to representations equally comfortable for humans. This is why SPADES, which has been available for some time, has recently been extended by a graphical interface. This paper gives a brief survey of the system, in particular of its new component.