Normalization Rules of the Object-Oriented Data Model

Abstract

There are only very few approaches to normalizing object-oriented data. In this paper we present an approach to normalization of the object-oriented conceptual model based on UML class diagrams. First part of the paper describes the current status in the area of formal methods used for object-oriented data modeling. Second part presents four normalization rules, which are based on own experience and modied Ambler-Beck approach. These normalization rules are introduced on an example. Our method has been used in education at several universities. It has been and is also used for database design in software development projects, which we carried out. Recently, development of the CASE tool based on this approach has been started.

Bond Portfolio Analysis with Parallel Collections in Scala

“…In other words, the database is organized in third-object normal (3ONF) form. [19] Thus, to evaluate Equation 3, a total of 2+Q accesses are necessary: one access to fetch φ j ; Q fetches to retrieve each b i ; and finally, one store to update the portfolio, φ j , with its price. The figure below gives the class diagram, as it is stored in the document repository.…”