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

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Tangible Modelling to Elicit Domain Knowledge: An Experiment and Focus Group

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Conceptual models represent social and technical aspects of the world relevant to a variety of technical and non-technical stakeholders....

The REA Accounting Model: Enhancing Understandability and Applicability

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The REA accounting model developed by McCarthy conceptualizes the economic logic of the double-entry bookkeeping without referring to debits,...

A Schema-Less Data Model for the Web

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To extract and represent domain-independent web scale data, we introduce a schema-less and self-describing data model called Object-oriented Web...

Taming Software Variability: Ontological Foundations of Variability Mechanisms

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Variability mechanisms are techniques applied to adapt software product line (SPL) artifacts to the context of particular products, promoting...

An Analysis and Characterisation of Publicly Available Conceptual Models

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Multiple conceptual data modelling languages exist, with newer version typically having more features to model the universe of discourse...

Personalized Knowledge Visualization in Twitter

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In recent years, Twitter has been playing an essential role in broadcasting real-time news and useful information. Many commercial...

An Extended ER Algebra to Support Semantically Richer Queries in ERDBMS

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In this paper we present the foundations for a semantically rich main-memory DBMS based on the entity-relationship data model....

A Multi-dimensional Approach to Crowd-Consensus Modeling and Evaluation

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In this paper, we propose a multi-dimensional approach to support modeling and consensus management in collective crowdsourcing applications/problems. We...

Enhancing Entity-Relationship Schemata for Conceptual Database Structure Models

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The paper aims at development of well-founded notions of database structure models that are specified in entity-relationship modelling languages....

Principles for Modeling User-Generated Content

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The increasing reliance of organizations on externally produced information, such as online user-generated content (UGC), challenges the common assumption...