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Experimental Comparisons of Entity-Relationship and Object Oriented Data Models

Peretz Shoval
1997 Australasian Journal of Information Systems  
The extended entity-relationship (EER) model is being "threatened" by the object-oriented (OO) approach, which penetrates into the areas of system analysis and data modeling.  ...  We conclude that even if the objective is to implement an OO database schema, the following procedure is still recommended: 1) create an EER conceptual schema, 2) map it to an OO schema, and c) augment  ...  INTRODUCTION The object oriented (OO) approach has spread into various areas of computing that include not only programming, but also systems analysis and design, database management, among others.  ... 
doi:10.3127/ajis.v4i2.361 fatcat:emn4iyq6bzek5gzkmdahr4qcpi

Modelling of Graph Databases

Jaroslav Pokorny
2017 Journal of Advanced Engineering and Computation  
We propose a sufficient conceptual model based on a binary variant of the ER model and show its relationship to a graph database model, i.e. a mapping conceptual schemas to database schemas.  ...  We show a number of examples of often cited GDBMSs and their approach to database schemas and ICs specification. Also a conceptual level of a graph database design is considered.  ...  Acknowledgment The work was supported by the Charles University project Q48.  ... 
doi:10.25073/jaec.201711.44 fatcat:xpwbge52wngojlusmzvnnfhqie

A CONCEPTUAL FOUNDATION AND INTEGRATION DATABASE DESIGNING MODEL

Hegazi
2014 Journal of Computer Science  
This study proposes a database designing model that works as a foundation for database designing phases and as integration for the database systems.  ...  The proposed model is a graphic model, where it presents the fragmentations of the system in indexed binary tree and then the integration process follows the concept of tree traversing.  ...  Within this study we also suggest making a level 2 of the indexed tree (Fig. 3 for ER designer and Fig. 4 for object oriented designer).  ... 
doi:10.3844/jcssp.2014.376.381 fatcat:h2627sdavfatxktqk6zqqqwqle

A Knowledge Based System Converting ER Model into an Object-Oriented Database Schema

II-Yeol Song, Heather M. Godsey
1993 Database Systems for Advanced Applications '93  
We think that the translation methodologies from semantic data models into OODB schema are important since most existing relational database design methodologies are based on the semantic approach and  ...  A set of rules that can convert most semantic constructs of ER models into an OODB schema is discussed.  ...  "An Object-Oriented object-oriented database (OODB) schema design.  ... 
doi:10.1142/9789814503730_0033 fatcat:7onrlx4rczerdjef3fjx4hzohi

Extracting semantic metadata and its visualization

Dongwon Lee, Yousub Hwang
2001 XRDS Crossroads The ACM Magazine for Students  
Both of them encouraged us to write this article and carefully reviewed it.  ...  As a semi-autonomous agent that transforms relational schema to conceptual schema using the Unifying Semantic Model (USM) constructs [14] , SMEVA has been developed to achieve four objectives: 1. to provide  ...  The Entity-Relationship (ER) model, initially proposed by Chen in 1976 [2] , has been widely accepted in the area of database conceptual modeling.  ... 
doi:10.1145/367884.367897 fatcat:izudlurwpbhnbl4yars73wezd4

RIDL*: a tool for the computer-assisted engineering of large databases in the presence of integrity constraints

O. De Troyer
1989 SIGMOD record  
Acknowledgements Bibliography and References Acknowledgements I would like to thank Robert Meersman for suggesting improvements to an earlier draft of this paper. BIBLIOGRAPHY and REFERENCES  ...  We use the notation STATE(S) to denote the set of all possible models of a database schema (or theory) S and we use the term database state for such a model.  ...  In RIDL-M the generation of a relational database schema from a conceptual schema is based on database schema transformation theory [27] . We have adopt a model-theoretic view of databases.  ... 
doi:10.1145/66926.66965 fatcat:xhjch3lowzdibiwdngq2vevy5a

RIDL*: a tool for the computer-assisted engineering of large databases in the presence of integrity constraints

O. De Troyer
1989 Proceedings of the 1989 ACM SIGMOD international conference on Management of data - SIGMOD '89  
Acknowledgements Bibliography and References Acknowledgements I would like to thank Robert Meersman for suggesting improvements to an earlier draft of this paper. BIBLIOGRAPHY and REFERENCES  ...  We use the notation STATE(S) to denote the set of all possible models of a database schema (or theory) S and we use the term database state for such a model.  ...  In RIDL-M the generation of a relational database schema from a conceptual schema is based on database schema transformation theory [27] . We have adopt a model-theoretic view of databases.  ... 
doi:10.1145/67544.66965 dblp:conf/sigmod/Troyer89 fatcat:52uwz6e2ojeoxhrfkoeamwgoo4

On Using Conceptual Modeling for Ontologies [chapter]

S. Spaccapietra, C. Parent, C. Vangenot, N. Cullot
2004 Lecture Notes in Computer Science  
This paper analyzes some of the arguments that are relevant to the debate, in particular the question whether conceptual data models would adequately support the design and use of ontologies.  ...  Are database concepts and techniques suitable for ontology design and management? The question has been on the floor for some time already.  ...  The drawing uses a simple notation, based on an underlying binary data model, the kind of model many ontology tools adhere to. Oval nodes (e.g. Hotel) denote conceptual entities.  ... 
doi:10.1007/978-3-540-30481-4_3 fatcat:3rbtjioij5cf3l4b4orbfdt53m

Page 79 of Journal of Research and Practice in Information Technology Vol. 28, Issue 3 [page]

1996 Journal of Research and Practice in Information Technology  
HALPIN, T.A. (1995): Conceptual Schema and Relational Database Design, 2nd edn, Prentice Hall, Sydney.  ...  At the conceptual level, the problems of partially null keys should not be addressed for the following reasons: — The conceptual schema should reflect how the user per- ceives the data and its inter-relationships  ... 

Information Modeling: Forty Years of Friendship [chapter]

Stig Berild, Eva Lindencrona
2011 IFIP Advances in Information and Communication Technology  
The research group was called Computer Aided Design of Information Systems (CADIS).  ...  The CS5 DBMS was based on binary relations.  ...  Final Thoughts We started with binary models in the CADIS project, went through all the turbulence during the years, and have just reached the end of the National Information Structure project [16] where  ... 
doi:10.1007/978-3-642-23315-9_37 fatcat:c3t32dalwvcgtjolnsvdvn5al4

Conceptual Design of Document NoSQL Database with Formal Concept Analysis

2016 Acta Polytechnica Hungarica  
In this paper we will explore a method for the conceptual modeling for document based databases, using Formal Concept Analysis (FCA).  ...  Results of experiments using our method have proven that decisions affecting the modeling of data can affect application performance and database capacity.  ...  A prevalent model in the conceptual database design is the Entity-Relationship (E-R) model.  ... 
doi:10.12700/aph.13.2.2016.2.13 fatcat:jdnxlc6lwfenzpiz2dfayfk2fy

An executable meta model for re-engineering of database schemas [chapter]

Manfred A. Jeusfeld, Uwe A. Johnen
1994 Lecture Notes in Computer Science  
A prototype has been implemented on top of a deductive object base manager for the mapping of relational schemas to entity-relationship diagrams.  ...  A logical database schema, e.g. a relational one, is an implementation of a speci cation, e.g. an entity-relationship diagram.  ...  We w ould like to thank Matthias Hallmann and Wolf Fischer from CAP debis SSP for helping us to evaluate our prototype within a commercial system.  ... 
doi:10.1007/3-540-58786-1_100 fatcat:6fzgaefxxjgnxpvtixodqo4cuy

Toward resolving inadequacies in object-oriented data models

T.W Ling, P.K Teo
1993 Information and Software Technology  
in the OO approach, (2) the lack of a general and flexible support for external schemas or views, (3) the inability to judge the quality of OO database schema design and (4) the lack of a reasonable approach  ...  The reader is assumed to be familiar with object-oriented concepts. See [18, 28, 40, 46] for some useful references.  ...  To use the message passing mechanism, it may be required to re-define an n-ary relationship among objects, eg. an SPJ relationship [15] , in terms of binary relationships.  ... 
doi:10.1016/0950-5849(93)90060-g fatcat:vetqpxeipjhqzkkxtaphafqnty

Semantic Enrichment of XML Schema to Transform Association Relationships in ODL Schema

Doha Malki, Mohamed Bahaj
2015 Journal of Software Engineering and Applications  
We chose oriented object database as a target database because there are many common characteristics between XML and object-oriented model, thus the mapping from XML data into objectoriented databases  ...  It is possible to realize the concepts of ODL in a model of XML schema, we propose to introduce an enrichment concretizing these concepts in the XML Schema models.  ...  In [6] , it address the mapping of the contents of an existing object-oriented database into XML using object graph; the reverse process is also proposed to store XML data in object-oriented database.  ... 
doi:10.4236/jsea.2015.82008 fatcat:tgamjfibfff2tclvghkheqljky

Generating three-tier applications from relational databases: a formal and practical approach

Macario Polo, Juan Ángel Gómez, Mario Piattini, Francisco Ruiz
2002 Information and Software Technology  
The method is implemented in a tool that we have successfully used in several projects of medium size.  ...  The method works as a transformation function that takes the relational schema as its input, producing three sets of classes (which depend on the actual system being reengineered) to represent the final  ...  of the binary relationship model for conceptual data modeling.  ... 
doi:10.1016/s0950-5849(02)00130-1 fatcat:xi2ldjar3fcpzkbgofwvhl564m
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