Das Werk einschlieBlich aller seiner Teile ist urheberrechtlich geschUtzt. Jede Verwertung auBerhalb der engen Grenzen des Urheberrechtsgesetzes ist ohne Zustimmung des Verlages unzuliissig und strafbar. Das gilt bescnders fOr Vervielfiiltigungen, Ubersetzungen, Mikroverfilmung en und die Einspeicherung und 'ferarbeitung in elektronischen Systemen.
This paper describes an approach to the design of online help for programming tasks and modelling tasks, based on a theoretical framework of problem solving and learning. The framework leads to several design principles which are important to the problem of when and how to supply help information to a learner who is constructing a solution to a given problem. We will describe two example domains where we apply these design principles: The ABSYNT problem solving monitor supports learners with help and proposals for functional programming. The PETRI-HELP system currently under development is intended to support the learning of modelling with Petri nets.
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