A Cellular Model for Information Systems on the Web-Integrating Local and Global Information
DANTE '99 Proceedings of the 1999 International Symposium on Database Applications in Non-Traditional Environments
Designing information-preserving mapping schemes for XML
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Grouping and aggregation in the concept-oriented data model
Proceedings of the 2006 ACM symposium on Applied computing
Expressiveness and complexity of XML Schema
ACM Transactions on Database Systems (TODS)
A New Method for Developing Business Applications: The Cellular Data System
CW '06 Proceedings of the 2006 International Conference on Cyberworlds
A conceptual model for multidimensional data
APCCM '08 Proceedings of the fifth Asia-Pacific conference on Conceptual Modelling - Volume 79
An integrated multi-task inductive database VINLEN: initial implementation and early results
KDID'06 Proceedings of the 5th international conference on Knowledge discovery in inductive databases
Inductive databases in the relational model: the data as the bridge
KDID'05 Proceedings of the 4th international conference on Knowledge Discovery in Inductive Databases
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In the era of cloud computing, data is processed within "the cloud", and data and its dependencies between systems or functions progress and change constantly within "the cloud", as user requirements change. Such information worlds are called cyberworlds. In designing cyberworlds, the Incrementally Modular Abstraction Hierarchy (IMAH) gives a most appropriate mathematical background to model dynamically changing cyberworlds by descending from the abstract level to the specific one, while preserving invariants. An attaching function is defined on the adjunction space level to model attachment of spaces by an equivalence relation in IMAH. In this paper, we have improved the attaching function to the Cellular Data System (CDS) that we developed based on IMAH. The function is quite effective in business application development when a system user recognizes an equivalence relation in business objects. We have also shown an example of the use of CDS for file permission information management under an unexpected situation, such as when an organizational structure or its staff assignments change, using CDS. In the example, we design and take advantage of spaces on three of the seven levels of IMAH, in order of abstractness: the set theoretical level, the topological space level and the adjunction space level.