A New Method for Conceptual Modelling of Information Systems

2009 ◽  
pp. 157-166
Author(s):  
Remigijus Gustas ◽  
Prima Gustiene
Keyword(s):  
Information Systems ◽  
New Method ◽  
Conceptual Modelling

scholarly journals A Model for Selecting a Strategic Information System Using the FITradeoff

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Ana Paula Henriques de Gusmão ◽  
Cristina Pereira Medeiros
Keyword(s):  
Information System ◽  
Information Systems ◽  
Decision Maker ◽  
Additive Model ◽  
New Method ◽  
Strategic Information ◽  
Perceived Need ◽  
Using Data ◽  
Strategic Information System ◽  
Glass Packaging

This paper arose from the perceived need to make a contribution towards assessing a strategic information system by using a new method for eliciting the weights of criteria. This is considered one of the most complex and important stages in multicriteria models. Multicriteria models have been proposed to support decisions in the context of information systems given that problems in this field deal with many conflicting criteria. The new procedure for eliciting the weights of the criteria has the advantage of requiring less effort from the decision-maker and, thus, the risk of inconsistent answers is minimized. Therefore, a model based on this new procedure is proposed and applied using data from a glass packaging factory that needs to select a single information system from a set of systems previously identified as relevant. The results obtained are consistent both with the performance of alternatives and with the additive model used to evaluate the alternatives.

Thinking Ontologically

2011 ◽  
pp. 82-104 ◽  
Author(s):  
Jörg Evermann
Keyword(s):  
Information Systems ◽  
Conceptual Model ◽  
Software Design ◽  
Real World ◽  
Object Oriented ◽  
Development Project ◽  
Conceptual Modelling ◽  
The Real ◽  
Design Languages ◽  
Is Development

Information systems (IS) are situated in and representations of business and organizational domains. Conceptual models of the real world serve as tools for understanding the business domain. Conceptual modelling is thus an important first step in any IS development project. As no language has been generally accepted for conceptual modelling, researchers have proposed extending the use of widely accepted object-oriented software design languages such as UML for this purpose. A major problem with this is the fact that such languages possess no real-world business or organizational meaning— that is, it is unclear what the constructs of such languages mean in terms of the business. This chapter discusses how such meaning can be assigned to languages like UML. It provides an example that demonstrates the differences between a software design model and a conceptual model in UML. This chapter shows that UML is suitable for conceptual modelling but that the modeller must take special care not to confuse software aspects with aspects of the real world being modelled.

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