An integrated framework of conceptual modeling for performance improvement of the information systems

Author(s):  
Lindita Nebiu Hyseni ◽  
Zamir Dika
2015 ◽  
Vol 53 ◽  
pp. 330-345 ◽  
Author(s):  
Marcela Ruiz ◽  
Dolors Costal ◽  
Sergio España ◽  
Xavier Franch ◽  
Óscar Pastor

2004 ◽  
pp. 34-70 ◽  
Author(s):  
Klaus-Dieter Schewe ◽  
Bernhard Thalheim

In this chapter, a conceptual modeling approach to the design of web information systems (WIS) will be outlined. The notion of media type is central to this approach. Basically, a media type is defined by a view on an underlying database schema, which allows us to transform the data content of a database into a collection of media objects that represent the data content presented at the web interface. The view is extended by operations and an adaptivity mechanism, which permits the splitting of media objects into several smaller units in order to adapt the WIS to different user preferences, technical environments and communication channels. The information entering the design of media types is extracted from a previous story boarding phase. In consecutive phases, media types have to be extended by style patterns as the next step toward implementation.


Author(s):  
Pramila Gupta ◽  
James A. Sykes

We would like to believe that early in the new millennium the practice of conceptual modeling will rest on a sounder theory base than it does at present. Although a great deal of valuable research in information systems and conceptual modeling has been done during the last twenty years or so, the results in many cases have not yet sufficiently influenced other research work or found their way into current practice. Reasons for this might include the inaccessibility of much of the work and the time pressures on practising analysts. We think that inadequate consolidation of reported results is also a factor. Without consolidation, it is difficult to obtain an overall picture in a short time, and it can be hard to see the value of individual contributions. While it is easy to see the need for consolidation, achieving it is harder. Reviews and surveys can help, but do not by themselves provide the necessary linking of individual research efforts into some larger framework. This chapter draws on theories from philosophy, linguistics, cognitive science, conceptual modeling and information systems in order to develop such a framework. Its goals include improving our understanding of conceptual modeling as a process and relating the different representations of concepts that can occur during conceptual modeling. To illustrate some of its benefits, the framework is applied to the case of object-role modeling in its intended use as a conceptual modeling method and notation at the ontological level of a universe of discourse. The framework is applicable to other modeling methods and notations that may view the universe of discourse at a different level (e.g., epistemological). It assists analysts assessing and working with the techniques that have emerged in the late twentieth century. It provides the sound theory base we need for the new millennium.


Sign in / Sign up

Export Citation Format

Share Document