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ALCHEMIST is a general purpose object-oriented transformation generator. ALCHEMIST provides a new approach to developing transformations between any well-defined representations. It allows users to define the syntactic structure of the data representations and the related structure associations with a grammar notation. These grammars can then be augmented with semantic operations. From this description...
A major problem with the usefulness of decision support systems (DSS) or executive information systems (EIS) occurs when the data used by the system is not accurate. When inaccurate data is used as input to a DSS, the resulting output may seem illogical to management. As a result, the management views the EIS as defective. To prevent this problem, it is wise for the systems analyst who designs the...
We describe a step-by-step methodology for the design and construction of hypermedia applications and illustrate our approach using a small application. The Relationship Management Design (RMD) methodology begins with a data model of the application domain and proceeds through the design of the hypertext network, user interface and run-time dynamics finally concluding with the construction and testing...
Information systems are often implemented as closed, monolithic applications that isolate information and functionality from other applications in a computing environment. Open hypermedia architectures, on the other hand, tend to promote information and tool integration. We examine hypermedia and information system integration from a technical perspective, and argue the case for using open system...
There are many problems facing scientists in their efforts to use computers to manage, access, and analyze data. One serious problem is the heterogeneity of data sources. Previous research into accessing heterogeneous data has not addressed problems with accessing large data sources that are not managed by database management systems. We believe that an object-oriented database management system can...
Advanced Traveler Information Systems (ATIS) under the Intelligent Vehicle Highway Systems (IVHS) context require efficient information retrieval and updating in a dynamic environment and at different geographical scales. Some problems in ATIS can be solved based on the functionalities provided by GIS systems. However, extra requirements such as real-time response are not readily met in existing GIS...
The emerging research area of computer supported cooperative work (CSCW) has yielded a number of groupware applications in recent years. The application and installation of these systems in large organization or for the support of inter-organizational cooperation requires information about the organizational environment in which they are used. The TOSCA system which is described aims to provide that...
In his research the author is looking into the cooperation of methodology, language, and database in the design of object-oriented systems which are to be realized in an object-oriented programming language using an object-oriented database system (OODBMS). The focus is on some of the differences between traditional object-oriented design and object-oriented database design. For this purpose a small...
Researchers in genetics, molecular biology, neurobiology, ecology and other biological disciplines are generating enormous quantities of data which need to be managed and made available to the scientific community. The database needs of these communities can provide a forcing function for the development of more flexible, complex, and user-friendly database technologies. This paper uses a database...
We present an interactive query system applied to the specific problems of immunogenetics being undertaken with under international sponsorship (currently European with EMBL (European Molecular Biology Laboratory)). The challenge is to adapt the models available in computer science (database conceptual models, grammars, formal models) to the specific area of genetic data with the objective of structuring...
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