Conceptual Modeling of Information Systems

2007 ◽  
Keyword(s):  
Information Systems ◽  
Conceptual Modeling

Structural Media Types in the Development of Data-Intensive Web Information Systems

2004 ◽  
pp. 34-70 ◽  
Author(s):  
Klaus-Dieter Schewe ◽  
Bernhard Thalheim
Keyword(s):  
Information Systems ◽  
Conceptual Modeling ◽  
User Preferences ◽  
Data Intensive ◽  
Media Type ◽  
Web Information ◽  
Media Objects ◽  
Data Content ◽  
Media Types ◽  
Web Information Systems

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.

Conceptual Modeling Process and the Notion of a Concept

2011 ◽  
pp. 53-68
Author(s):  
Pramila Gupta ◽  
James A. Sykes
Keyword(s):  
Information Systems ◽  
Research Work ◽  
Conceptual Modeling ◽  
Sound Theory ◽  
Individual Contributions ◽  
Late Twentieth ◽  
Short Time ◽  
Theory Base ◽  
Universe Of Discourse ◽  
New Millennium

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.

scholarly journals GRALD: an Approach for Goal and Risk Analysis in the Development of Information Systems for the Web of Data

2019 ◽  
Vol 7 ◽  
pp. 4
Author(s):  
Marcio Louzada De Freitas ◽  
Renata Silva Souza Guizzardi ◽  
Vítor Estêvão Silva Souza
Keyword(s):  
Information Systems ◽  
Linked Data ◽  
Conceptual Modeling ◽  
Risk Identification ◽  
Domain Ontology ◽  
Intrinsic Activity ◽  
Published Data ◽  
Functional Requirements ◽  
Web Of Data ◽  
The Web

The publication of Linked Data on the Web regarding several application domains leads to new problems related to Requirements Engineering, which needs to take into account aspects related to new ways of developing systems and delivering information integrated with the Web of Data. Tasks such as (functional and non-functional) requirements elicitation and ontology-based conceptual modeling can be applied to the development of systems that publish Linked Data, in order to obtain a better shared conceptualization (i.e., a domain ontology) of the published data. The use of vocabularies is an intrinsic activity when publishing or consuming Linked Data and their choice can be supported by the elicited requirements and domain ontology. However, it is important to assess the risk when choosing external vocabularies, as their use can lead to problems, such as misinterpretation of meanings due to poor documentation, connection timeouts due to infrastructure problems, etc. Thus, risk identification, modeling and analysis techniques can be employed, in order to identify risks and their impacts on stakeholder goals. In this work, we propose GRALD: Goals and Risks Analysis for Linked Data, an approach for modeling goals and risks for information systems for the Web of Data.

scholarly journals From conceptual modeling to a map

2018 ◽  
Vol 1 ◽  
pp. 1-5
Author(s):  
Dariusz Gotlib ◽  
Robert Olszewski
Keyword(s):  
Information System ◽  
Information Systems ◽  
System Design ◽  
Spatial Modeling ◽  
Conceptual Modeling ◽  
Domain Modeling ◽  
Data Modelling ◽  
Information System Design ◽  
Cartographic Modeling ◽  
Design And Production

Nowadays almost every map is a component of the information system. Design and production of maps requires the use of specific rules for modeling information systems: conceptual, application and data modelling. While analyzing various stages of cartographic modeling the authors ask the question: at what stage of this process a map occurs. Can we say that the “life of the map” begins even before someone define its form of presentation? This question is particularly important at the time of exponentially increasing number of new geoinformation products. During the analysis of the theory of cartography and relations of the discipline to other fields of knowledge it has been attempted to define a few properties of cartographic modeling which distinguish the process from other methods of spatial modeling. Assuming that the map is a model of reality (created in the process of cartographic modeling supported by domain-modeling) the article proposes an analogy of the process of cartographic modeling to the scheme of conceptual modeling presented in ISO 19101 standard.

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