Journal ArticleDOI
The influence of database structure representation on database system learning and use
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TLDR
It is concluded that database representation is an important factor in database use and that the interaction between a database structure representation and a query language may dramatically affect database learning and use.Abstract:
Successful use of a computerized database by end users requires both an understanding of the structure of the database and knowledge of the available query language. Previous research has focused almost exclusively on query languages with little concern for how database structure is represented. This paper reports on an experiment that explores the influence of database structure representation on the ability of users to learn and use a database system. Four alternative representations of the same databases are developed and compared. These representations differ in semantics, symbols, and means of representing relationships. Interestingly, representation features that aid in communicating the contents of a database appear to hinder the learning of the SQL query language. We conclude that database representation is an important factor in database use and that the interaction between a database structure representation and a query language may dramatically affect database learning and use.read more
Citations
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Dimensions of information systems success
TL;DR: The IS Effectiveness Matrix provides a useful guide for conceptualizing effectiveness measurement in IS research, and for choosing appropriate measures, both for research and practice.
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Incentive mechanisms, fairness and participation in online group-buying auctions
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Journal ArticleDOI
Is Query Reuse Potentially Harmful? Anchoring and Adjustment in Adapting Existing Database Queries
Gove N. Allen,Jeffrey Parsons +1 more
TL;DR: It is demonstrated that anchoring and adjustment during query reuse can lead to queries that are less accurate than those written from scratch.
Journal ArticleDOI
The effects of state-based and event-based data representation on user performance in query formulation tasks
Gove N. Allen,Salvatore T. March +1 more
TL;DR: When presented with an event-based view, subjects expressing low or very low comfort levels in reading entity-relationship diagrams expressed confidence that better predicted query accuracy although there were no significant differences in actual query accuracy or level of confidence expressed.
Proceedings Article
The Effects of Information Request Ambiguity and Construct Incongruence on Query Development.
TL;DR: The results for ambiguity and construct incongruence suggest that organizations might elicit better query development if end users were sensitized to the nature of ambiguities that could arise in their business contexts.
References
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Applied Linear Statistical Models
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The entity-relationship model: toward a unified view of data
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TL;DR: Readers of this book will gain a strong working knowledge of the overall structure, concepts, and objectives of database systems and will become familiar with the theoretical principles underlying the construction of such systems.
Proceedings ArticleDOI
The entity-relationship model: toward a unified view of data
TL;DR: A data model, called the entity-relationship model, which incorporates the semantic information in the real world is proposed, and a special diagramatic technique is introduced for exhibiting entities and relationships.
Journal Article
A relational model of data for large shared data banks. 1970
TL;DR: A model based on n-ary relations, a normal form for data base relations, and the concept of a universal data sublanguage are introduced and certain operations on relations are discussed and applied to the problems of redundancy and consistency in the user's model.