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COOTS
1998 Abstract
Building a Scalable and Efficient Component Oriented System using CORBA - Active Badge System Case Study
Jakub Szymaszek, Andrzej Uszok,
and Krzysztof Zielinski
University of Mining and Metallurgy, Kracow
Abstract
This article presents experienc gathered when implementing the
localization system for an office environment in CORBA. It describes
methods which enable preserving fine-grained object-oriented structure
of the system and achieving efficient performance at the same
time. The presented study is a practical lesson about the implementation
of a scalable system oriented towards information dissemination. The
key idea is to represent a large observable collection of objects by a repository that provides access to them both as individual CORBA objects and data records. The proper usage of this duality may have substantial
influence on the overall system performance. The repository is equipped
with a scalable notification mechanism built around a notification dispatcher
and notification tree concepts. Fundamental features of the proposed
solution are illustrated by a performance study and a representative application.
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