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This paper intends to introduce to method of constructing a theory of organization based on the closely linked concepts of norms and signs. Such a norm-oriented method is well suited in E-business system development, organizational re-engineering and change. The shift of the paradigm from information flow model to information field theory plays in enabling organizations trying to adapt themselves...
Database watermarking is an efficient method for database security. This paper proposes a cluster-based database watermarking technique which first applies cluster theory to the database watermarking technology. The cluster theory is used to cluster the source data and the clustering results determine the quantity of embedded watermark information and embedded position. This method makes the watermark...
As a new direction for database technology, active database is applied to a variety of management information system (MIS) because of its features of activity, speediness and intelligence. This paper proposes an active event detection algorithm of time event based on the analysis of active database theory. Furthermore, we design the storage structure of ECA rule library and the architecture of ECA...
With the development of information industry, information service becomes more and more important in the information industry chain. This paper studies information service quality evaluation by empirical way, and then constructs the evaluation factors system that is fit for the traits of information service. Principal component analysis has been used in this paper.
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