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

ER - Intl Conf on Conceptual Modeling

Extending Organizational Modeling with Business Services Concepts: An Overview of the Proposed Architecture

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Nowadays, there is wide consensus on the importance of organizational modelling in the definition of software systems that correctly...

On Enabling Data-Aware Compliance Checking of Business Process Models

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In the light of an increasing demand on business process compliance, the verification of process models against compliance rules...

Query Answering under Expressive Entity-Relationship Schemata

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We address the problem of answering conjunctive queries under constraints representing schemata expressed in an extended version of the...

A Conceptual Approach to Database Applications Evolution

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Data-intensive systems are subject to continuous evolution that translates ever-changing business and technical requirements. System evolution usually constitutes a...

Automated Co-evolution of Conceptual Models, Physical Databases, and Mappings

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Schema evolution is an unavoidable consequence of the application development lifecycle. The two primary schemas in an application, the...

A SchemaGuide for Accelerating the View Adaptation Process

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Materialization of XML views significantly improves query performance in the often slow execution times for XPath expressions. Existing efforts...

Complexity of Reasoning over Temporal Data Models

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We investigate the computational complexity of reasoning over temporal extensions of conceptual data models. The temporal conceptual models we...

Using Preaggregation to Speed Up Scaling Operations on Massive Spatio-temporal Data

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A frequent operation in e-Science is downscaling of some data item or part thereof, such as obtaining a 1...

Situation Prediction Nets

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Situation awareness in large-scale control systems such as road traffic management aims to predict critical situations on the basis...

Model-Driven Data Migration

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The automatic generation of components from abstract models greatly facilitates information systems evolution, as changes to the model are...