The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title:	Translation of semantic aspects of OODINI graphical representation to ONTO OODB data definition language
Author:	Wang, Xiaoyong
View Online:	njit-etd1994-139 (xi, 121 pages ~ 3.0 MB pdf)
Department:	Department of Computer and Information Science
Degree:	Master of Science
Program:	Computer and Information Science
Document Type:	Thesis
Advisory Committee:	Perl, Yehoshua (Committee chair) Geller, James (Committee member) Wang, Jason T. L. (Committee member)
Date:	1994-10
Keywords:	Object-oriented databases Graphical user interfaces (Computer systems) OODINI ONTOS (Data definition language)
Availability:	Unrestricted
Abstract:	In this thesis we present a system to translate the semantic elements in the graphical schema language of OODINI from API of OODAL to the Type definition of ONTOS DB. To translate semantic constraints of the graphical language, we patch more information to existent class data structure in API of OODAL. After a brief review of OODINI, ONTOS DB and the existent translator without the ability to translate semantic constraints, we describe in detail the methods to translate the essential relationship. dependent relationship, multi-valued essential relationship and multi-valued dependent relationship. We employ an Inverse Reference to a "Set of" Type to achieve the goal. Setof and Tupleof relationship are special cases of the above relationships. For validating the result of the translation, we give examples of translation of a schema containing each of the relationships discussed.