ing Object Interactions Using Composition Filters Mehmet Aksit 1 , Ken Wakita 2 , Jan Bosch 1 , Lodewijk Bergmans 1 and Akinori Yonezawa 3 1 TRESE project, Department of Computer Science, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands. email: {aksit, bosch, bergmans}@cs.utwente.nl 2 Department of Information Science, Tokyo Institute of Technology, 2-12-1 Ohokayama, Meguro-ku, Tokyo, 152, Japan. email: wakita@is.titech.ac.jp 3 Dept. of Information Science - Faculty of Science- University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113 Japan. email: yonezawa@is.s.u-tokyo.ac.jp Abstract It is generally claimed that object-based models are very suitable for building distributed system architectures since object interactions follow the clientserver model. To cope with the complexity of today's distributed systems, however, we think that high-level linguistic mechanisms are needed to effectively structure, abstract and reuse object interactions. For example, the...

Recently, a considerable number of object-oriented software development methods have been introduced to produce extensible, reusable, and robust software. We have been involved in the development of a large number of pilot applications to form our own view on object-oriented methods. Although our experiences confirmed the claims about the benefits of object-oriented methods, we identified a number of important obstacles that are not addressed by current methods. This paper summarizes these obstacles and evaluates them with respect to our pilot applications. The aim of this paper is to make software engineers aware of problems they may encounter during object-oriented development, and to inspire researchers to initiate new research activities.