A Brief Introduction to Ontology

A Brief Introduction to Ontology

Roberto Paiano (University of Salento, Italy), Anna Lisa Guido (University of Salento, Italy) and Andrea Pandurino (University of Salento, Italy)
DOI: 10.4018/978-1-60566-300-5.ch004
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Abstract

It is now clear that a careful initial phase of design, above all that it concerns for the complex Web information systems, it is essential to assure the quality of the final system. To reduce the necessary time development effort in order to get the final output, it is important to have tools that allow quickly obtatining tangible results; in few words, it is important to quickly obtain a consistent part of code for the final application. In this way, it is possible to provide the customer with a first draft of the information system in order to have a first validation of the design.
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Definition Of Ontology

There are many definitions of the concept of “ontology” in the philosophical field, but surely that which is more suitable to this job is the definition given by Gruber in 1993: “ontology is a formal, explicit specification of a shared conceptualization.” The term “conceptualization” is the abstraction of some concept through the definition of its peculiar characteristics; the term “explicit” is connected to the fact that the constraints that contribute to the precise definition of the concept have to be expressed in a formal way, and finally the concept of “formality” points out that an ontology must be defined through a formal language.

The ontology, in conclusion, is a collection of terms and relative definitions or a map of concepts related to a well-precise domain in which it is possible to navigate.

When a group of people and software systems developed for the Web have to collaborate among them, it is necessary to guarantee that they understand the applications and the information that receive. Their interaction essentially depends on the adoption of a conceptualization, a formal representation of the reality as it is perceived independently the the used dictionary.

In order to understand the reality, an ontological characterization of the information is helpful: the information may be detected, isolated, organized and integrated based on what is most important: its content.

The ontology allows formulating an exhaustive and rigorous conceptual scheme within a well- specified domain. It generally concerns a hierarchical data structure that contains all of the amazing entities, the existing relationships between them, the rules, the axioms and the specific constraints of the domain.

Complete Chapter List

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Dedication
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
Table of Contents
Foreword
Paolo Paolini
Acknowledgment
Roberto Paiano
Chapter 1
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
The analysis of the business processes, realized through visits and interviews to the employees, must necessarily aim to provide for visibility to a... Sample PDF
Evolution of Business Process Notation
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Chapter 2
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
In this chapter, the main methodologies of Web application design established into the international scientific panorama are presented. Each of... Sample PDF
Web Information System Design Methodologies Overview
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Chapter 3
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
IDM provides also a good organization of pages with PIDM that, producing different views, allows focusing on different design aspects. IDM inherits... Sample PDF
Details About IDM Web Application Design Methodology
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Chapter 4
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
It is now clear that a careful initial phase of design, above all that it concerns for the complex Web information systems, it is essential to... Sample PDF
A Brief Introduction to Ontology
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Chapter 5
The Design Vision  (pages 106-130)
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
From the considerations made in the previous chapters, it emerges that the design of the complex Web information system must consider in a separate... Sample PDF
The Design Vision
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Chapter 6
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
There are several problems to face in the definition of the methodology of design object of this chapter. In regards to the internal users of the... Sample PDF
Web Application Process-Oriented Design for External Users
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Chapter 7
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
The case of study in examination has the goal of realizing a Web application to support an operator of a tourist agency that wants to realize a... Sample PDF
A Case Study for External Users
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Chapter 8
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
As more times underlined within this book, when the application is turned to the inside, users of the company that do not need information of... Sample PDF
Web Application Process-Oriented Design for Internal Users
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Chapter 9
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
The case immediately introduces it as a case strongly oriented to the logic of process and for which the operator, which in this context operates by... Sample PDF
Case Study for Internal Users
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Chapter 10
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
Surely, the design phase is one of the most important in the whole information system life cycle. The design phase allows realizing of the... Sample PDF
From the Model to the Code Generator
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Chapter 11
Technological Choices  (pages 233-252)
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
Referring back to how much was described in the preceding chapters, we introduce in this chapter the technological choices made up in order to... Sample PDF
Technological Choices
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Chapter 12
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
As it will be clearer subsequently, two different technologies will be used for realizing the generation of the code; the first one predominantly... Sample PDF
Tool to Support the Design Methdology: A Configurable Editor
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Chapter 13
Code Generators  (pages 287-310)
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
In this chapter, the design and the development of the code generating tools based on the technologies (described in Chapter XI) are presented. In... Sample PDF
Code Generators
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Chapter 14
Case Studies  (pages 311-352)
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
This chapter presents the detailed output of the two code generators showed in the previous chapter. For the first code generator software, the main... Sample PDF
Case Studies
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Chapter 15
Conclusions  (pages 323-358)
Roberto Paiano, Anna Lisa Guido, Andrea Pandurino
In this chapter, we briefly summarize the results achieved in this book, and we will provide some indications on possible future developments. In... Sample PDF
Conclusions
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About the Authors