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An infrastructure for mobile information systems based on a fragmented object model

Kirste, Thomas (1995):
An infrastructure for mobile information systems based on a fragmented object model.
1, In: Distributed Systems Engineering, (2), pp. 161-170. [Article]

Abstract

Global information management systems based on the vision of the 'docuserve' - such as the World-Wide-Web (WWW) - show that on-line access to vast amounts of distributed information is possible not only for the expert, but also for the end user. At the same time, the availability of affordable mid- and long-range wireless data communication services, based, e.g., on cellular phone technology, has put the vision of ubiquitous mobile information access within the reach of viable projects. I is now an interesting challenge to combine both concepts into a system model granting everyone ubiquitous access to the global information repository. However, problems such as low bandwidth and limited resources make this a non-trivial task. This paper describes MIS/0, an experimental mobile information system based on wireless data communication which has been developed at the Computer Graphics Center during 1994. MIS/0 and its underlying concepts address the above mentioned problem areas by introducing a fragmented object model. This model provides the necessary mechanisms for a (partial) migration of object behaviour to the mobile system - acting as an intelligent data terminal - at runtime. In addition to conventional caching and compression techniques, this is required for coping with intrinsic system limitations and low communication bandwidth in an environment with a virtually unlimited number of information types and services such as the docuserve.

Item Type: Article
Erschienen: 1995
Creators: Kirste, Thomas
Title: An infrastructure for mobile information systems based on a fragmented object model
Language: English
Abstract:

Global information management systems based on the vision of the 'docuserve' - such as the World-Wide-Web (WWW) - show that on-line access to vast amounts of distributed information is possible not only for the expert, but also for the end user. At the same time, the availability of affordable mid- and long-range wireless data communication services, based, e.g., on cellular phone technology, has put the vision of ubiquitous mobile information access within the reach of viable projects. I is now an interesting challenge to combine both concepts into a system model granting everyone ubiquitous access to the global information repository. However, problems such as low bandwidth and limited resources make this a non-trivial task. This paper describes MIS/0, an experimental mobile information system based on wireless data communication which has been developed at the Computer Graphics Center during 1994. MIS/0 and its underlying concepts address the above mentioned problem areas by introducing a fragmented object model. This model provides the necessary mechanisms for a (partial) migration of object behaviour to the mobile system - acting as an intelligent data terminal - at runtime. In addition to conventional caching and compression techniques, this is required for coping with intrinsic system limitations and low communication bandwidth in an environment with a virtually unlimited number of information types and services such as the docuserve.

Journal or Publication Title: Distributed Systems Engineering
Volume: 1
Number: 2
Uncontrolled Keywords: Architectures, Data models, Information systems, Mobile computing
Divisions: 20 Department of Computer Science
20 Department of Computer Science > Interactive Graphics Systems
Date Deposited: 16 Apr 2018 09:08
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