Search (4 results, page 1 of 1)

  • × author_ss:"Batra, D."
  • × year_i:[1990 TO 2000}
  1. Batra, D.; Marakas, G.M.: Conceptual data modelling in theory and practice (1995) 0.01 
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    Abstract
    Conceptual data modelling (CDM) refers to the phase of the information systems development process that involves the abstraction and representation of the real world data pertinent to an organization. When CDM is properly and rigorously performed, the delivered system is expected to be functionally richer, less error-prone, more fully attuned to meet user needs, mor able to adjust to changing user requirements and less expensive. However, there is little evidence that conceptual data modelling of the enterprise is actually conducted. There is a feeling that the 'corporate reality' is much different. In many organizations, CDM is never employed. In others, it is applied in a haphazard, project to project basis, thus leading to considerable redundancy. The academic community has mainly focused on proposing semantic data models but has not demonstrated a rigorous basis for conceptual data modelling. Specially, the community has failed to show how a conceptual data model can map to an accurate logical data model. Discusses and compares the perspectives of academic and practitioner communities regarding the application of conceptual data modelling
    Source
    European journal of information systems. 4(1995) no.3, S.165-193
  2. Batra, D.; Antony, S.R.: Novice errors in conceptual database design (1994) 0.01 
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    Source
    European journal of information systems. 3(1994) no.1, S.57-69
  3. Batra, D.; Sein, M.K.: Improving conceptual database design through feedback (1994) 0.01 
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    Abstract
    Design aids can improve the quality of systems developed by end users and non-expert designers. Reports a study undertaken to establish the concept validation of a design aid that is based on feedback to improve the quality of conceptual and logical relational databases. Describes the design of SERFER (Simulated ER based FEedback system for Relational databases) and test its results show that feedback can help users detect and correct certain types of database design errors in modelling ternary relationships. However, no improvements seems possible in the case of unary relationship. The experiment could not determine whether errors can be corrected in modelling binary relationships, since the subjects were reasonably adept and rarely committed serious errors in this case
  4. Batra, D.; Zanakis, S.H.: ¬A conceptual database design approach based on rules and heuristics (1994) 0.01 
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    Source
    European journal of information systems. 3(1994) no.3, S.228-239

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