Titlebook: ECOOP ‘88 European Conference on Object-Oriented Programming; Oslo, Norway, August Stein Gjessing,Kristen Nygaard Conference proceedings 19

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V. Voraussetzungen der Gruppenarbeitaterial. Much cooperation is based on silent coordination mediated by the shared material used in the work process. The properties of the shared material are, however, often ignored when work is computerised. Instead the emphasis has been on automating frequent work procedures. This has resulted in

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978-3-540-50053-7Springer-Verlag Berlin Heidelberg 1988

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What object-oriented programming may be - and what it does not have to be,llustrated how this framework is reflected in an object-oriented language and the language mechanisms are compared with the corresponding elements of other object-oriented languages. Main issues of object-oriented programming are considered on the basis of the framework presented here.

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Debugging Concurrent Systems Based on Object Groups,e language constructs which specify and use Object Groups have been introduced into an object-oriented concurrent language ABCL/l. The paper also describes ABCL/l’s debugging tools based on Object Groups.

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,The Mjølner Environment: Direct Interaction with Abstractions,istently to visualize both a program and its execution. The windows are arranged hierarchically reflecting the static nesting of blocks. The window hierarchy gives powerful support for interaction and navigation in a program. Incremental compilation techniques are used to make a high level of interaction and integration possible.