If it is true that a scientific event inevitably bears the quality mark of its contributors and of its organizers, it is the same true that we owe to the editors the conception of the Proceedings so that to highly and inspiredly reflect the structure of the event. When assuming an editing task of such importance as that presupposed by the Volume "Advanced Information Systems Engineering ", which makes the Proceedings of the 11th International Conference CaiSE '99 (Heidelberg, Germany), one should have been fully involved in the event organisation and fully aware of its large spectrum. As it is the case of the Editors- Matthias Jarke -Program Chair, and Andreas Oberweis -Organizing Chair, who embarked upon the difficult mission of placing the event on its scale of importance and of singling out its core subject from the topics of many previous editions of the Conference. They followed a clear-cut idea-that of grouping the full papers presented at the Conference according to their immediate or distant connection to the main subject, i.e. component-based information systems.
edited by Matthias Jarke and Andreas Oberweis
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