An Empirical Perspective of Using Ternary Relationships in Database Conceptual Modelling
To apply Extended Entity Relationship Model (EER) is a good method for representing requirements on information systems, because of its high level of abstraction. Although it is very close to the user, it is not so trivial when some constructs, such as higher order relationships, are used. This pape...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Vilnius University
2003-10-01
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| Series: | Informatics in Education |
| Subjects: | |
| Online Access: | https://infedu.vu.lt/doi/10.15388/infedu.2003.14 |
| _version_ | 1818021940827258880 |
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| author | Elena CASTRO Dolores CUADRA Paloma MARTÍNEZ |
| author_facet | Elena CASTRO Dolores CUADRA Paloma MARTÍNEZ |
| author_sort | Elena CASTRO |
| collection | DOAJ |
| description | To apply Extended Entity Relationship Model (EER) is a good method for representing requirements on information systems, because of its high level of abstraction. Although it is very close to the user, it is not so trivial when some constructs, such as higher order relationships, are used. This paper describes the characterisation and several important results of an experiment performed at our university in order to show some of the difficulties found when novice students and practitioners use ternary relationships. Some special topics in identifying ternary relationships such as the importance of the domain of text and the intersection data are also investigated. In order to guide and help users in the design task, these results are introduced in PANDORA Case Tool, a research project which tries to serve as a methodological assistance tool. |
| first_indexed | 2024-04-14T08:24:55Z |
| format | Article |
| id | doaj.art-1da066efa97b45589d1e8886764d6305 |
| institution | Directory Open Access Journal |
| issn | 1648-5831 2335-8971 |
| language | English |
| last_indexed | 2024-04-14T08:24:55Z |
| publishDate | 2003-10-01 |
| publisher | Vilnius University |
| record_format | Article |
| series | Informatics in Education |
| spelling | doaj.art-1da066efa97b45589d1e8886764d63052022-12-22T02:04:05ZengVilnius UniversityInformatics in Education1648-58312335-89712003-10-012219120010.15388/infedu.2003.14An Empirical Perspective of Using Ternary Relationships in Database Conceptual ModellingElena CASTRO0Dolores CUADRA1Paloma MARTÍNEZ2Computer Science Department, Escuela Politécnica Superior Universidad Carlos III de Madrid Avda. de la Universidad 30, 28911 Leganés Madrid, SpainComputer Science Department, Escuela Politécnica Superior Universidad Carlos III de Madrid Avda. de la Universidad 30, 28911 Leganés Madrid, SpainComputer Science Department, Escuela Politécnica Superior Universidad Carlos III de Madrid Avda. de la Universidad 30, 28911 Leganés Madrid, SpainTo apply Extended Entity Relationship Model (EER) is a good method for representing requirements on information systems, because of its high level of abstraction. Although it is very close to the user, it is not so trivial when some constructs, such as higher order relationships, are used. This paper describes the characterisation and several important results of an experiment performed at our university in order to show some of the difficulties found when novice students and practitioners use ternary relationships. Some special topics in identifying ternary relationships such as the importance of the domain of text and the intersection data are also investigated. In order to guide and help users in the design task, these results are introduced in PANDORA Case Tool, a research project which tries to serve as a methodological assistance tool.https://infedu.vu.lt/doi/10.15388/infedu.2003.14CASE toolsdatabase design methodologiesntelligent tutoring systems |
| spellingShingle | Elena CASTRO Dolores CUADRA Paloma MARTÍNEZ An Empirical Perspective of Using Ternary Relationships in Database Conceptual Modelling Informatics in Education CASE tools database design methodologies ntelligent tutoring systems |
| title | An Empirical Perspective of Using Ternary Relationships in Database Conceptual Modelling |
| title_full | An Empirical Perspective of Using Ternary Relationships in Database Conceptual Modelling |
| title_fullStr | An Empirical Perspective of Using Ternary Relationships in Database Conceptual Modelling |
| title_full_unstemmed | An Empirical Perspective of Using Ternary Relationships in Database Conceptual Modelling |
| title_short | An Empirical Perspective of Using Ternary Relationships in Database Conceptual Modelling |
| title_sort | empirical perspective of using ternary relationships in database conceptual modelling |
| topic | CASE tools database design methodologies ntelligent tutoring systems |
| url | https://infedu.vu.lt/doi/10.15388/infedu.2003.14 |
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