planning - designing - developing IT
Special Interest Group on Systems Analysis and Design

Publications

Visual SQL – High-Quality ER-Based Query Treatment

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Query formulation is still a difficult task whenever a database schema is large or complex. The user has to...

Conceptual Data Models for Engineering Information Modeling and Formal Transformation of EER and EXPRESS-G

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Nowadays computer-based information systems have become the nerve center of current manufacturing systems. The requirement on engineering information modeling...

AXIS: A XML Schema Integration System

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The availability of large amounts of heterogeneous distributed web data necessitates the integration and querying of XML data from...

Mining Typical Preferences of Collaborative User Groups

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Collaborative filtering systems have the problems of sparsity– providing a recommendation by correlation between only two customers’ preferences, and...

Conceptual Modeling of Concurrent Systems through Stepwise Abstraction and Refinement Using Petri Net Morphisms

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Development of complex concurrent systems is very often performed in a top-down or bottom-up approach depending on design circumstances....

Taxonomy-Based Conceptual Modeling for Peer-to-Peer Networks

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We present a taxonomy-based conceptual modeling approach for building P2P systems that support semantic-based retrieval services. We adopt this...

EITH – A Unifying Representation for Database Schema and Application Code in Enterprise Knowledge...

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The integration of heterogeneous legacy databases requires understanding of database structure and content. We previously developed a theoretical and...

A Heuristic-Based Methodology for Semantic Augmentation of User Queries on the Web

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As the World Wide Web continues to grow, so does the need for effective approaches to processing users’ queries...

On Analysing Query Ambiguity for Query Refinement: The Librarian Agent Approach

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In this paper, we present an approach for the disambiguation of ontology-based queries. The approach is based on measuring...

Goal-Based Business Modeling Oriented towards Late Requirements Generation

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Recently, a lot of research efforts in software engineering have focused on integrating business modeling as a key piece...