Transparency and adaptability are important criteria for the usability of computer systems. It is not easy to fulfill these criteria in ill-structured domains by using traditional software concepts. The object-oriented approach, however, allows the construction of metasystems which enable the user to understand and manipulate the underlying conceptual schemata of an application system. ZOO is a metasystem for the application expert. ZOO visualizes the contents of an object-oriented knowledge base in a graphic, spatial representation as a net of icons. ZOO allows its user to inspect, manipulate, create and delete the components of a knowledge base through direct manipulation of graphic objects.
CITATION STYLE
Riekert, W. F. (1987). The ZOO metasystem: A direct-manipulation interface to object-oriented knowledge bases. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 276 LNCS, pp. 131–139). Springer Verlag. https://doi.org/10.1007/3-540-47891-4_13
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