Object-oriented design

Summary

Object-oriented design (OOD) is the process of planning a system of interacting objects for the purpose of solving a software problem. It is one approach to software design. Overview An object contains encapsulated data and procedures grouped together to represent an entity. The 'object interface' defines how the object can be interacted with. An object-oriented program is described by the interaction of these objects. Object-oriented design is the discipline of defining the objects and their interactions to solve a problem that was identified and documented during object-oriented analysis. What follows is a description of the class-based subset of object-oriented design, which does not include object prototype-based approaches where objects are not typically obtained by instantiating classes but by cloning other (prototype) objects. Object-oriented design is a method of design encompassing the process of object-oriented decomposition and a notation for depicting both logica

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https://en.wikipedia.org/wiki/Object-oriented_design

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From Requirements to Tests via Object-Oriented Design

Cécile Peraire

This paper studies testing in an object-oriented (OO) development process. It is based on the production cell case study. A control program for the production cell has been developed using both the Fusion method, for OO analysis and design, and the formal notation CO-OPN, as an intermediate between the OO design and an implementation in Ada 95. The paper describes the application of a statistical testing method, developed at LAAS, where test inputs are derived from the OO analysis documents, and the application of a formal testing method, developed at EPFL, where test inputs are derived from CO-OPN descriptions. Then various problems which have appeared during the case study are reported. They mainly concern controllability and observability issues and caused some iteration and backtrack on OO analysis and design. The paper concludes by sketching a notion of OO design for testability.

1998

Modelling the Production Cell Case Study using the Fusion Method

Cécile Peraire

The purpose of this work is to evaluate, by means of a case study, our formal testing method for object-oriented software. For this purpose we propose the development of an object-oriented application of realistic size, addressing all the phases of the software life-cycle: requirements, analysis, design, formal description, implementation and testing. Analysis and design are performed with the Fusion method, formal description with the CO-OPN language, implementation with Ada 95 and test selection with our testing method. This report presents the description of the production cell case study and Fusion models. The formal description and testing phase are presented in technical report EPFL-DI 98/299.

1998

The purpose of this work is to evaluate, by means of a case study, our formal testing method for object-oriented software. For this purpose we propose the development of an object-oriented application of realistic size, addressing all the phases of the software life-cycle: requirements, analysis, design, formal description, implementation and testing. Analysis and design are performed with the Fusion method, formal description with the CO-OPN language, implementation with Ada 95 and test selection with our testing method. The description of the production cell case study and Fusion models are presented in technical report EPFL-DI 98/298. This report presents the formal description and testing phase.

1998