Cohesion is an important software attribute, and it is one of significant criteria for assessing object-oriented software quality. Although several metrics for measuring cohesion have been proposed, there is an aspect which has not been supported by those existing metrics, that is “cohesive-part size.” This paper proposes a new metric focusing on “cohesive-part size,” and evaluates it in both o...

Design patterns have become a widely acknowledged software engineering practice and therefore have been incorporated in the curricula of most computer science departments. This paper presents an observational study on students’ ability to understand and apply design patterns. Within the context of a postgraduate software engineering course, students had to deliver two versions of a software sys...

Object-oriented software metrics have been shown to be able to predict various software quality factors. This paper investigated whether the metrics could predict class error probability and whether the predicted probability could group classes in the object-oriented design. We found, in an open source system, that a set of object-oriented metrics could predict class error probability and the p...

Workflow designers experience considerable freedom in designing the smaller steps (or activities) within a process. An operational notion of activity cohesion and coupling may help them to design more well-structured workflow activities. Inspired by resemblances between software programs and workflow processes, this paper gives an overview of software quality metrics and their applicability to ...

In this research paper we try to realize our architecture testing model [1], with the help of object oriented relationship, using different software metrics. Measurement is key element of any engineering process. Realization architectural testing tool, accomplish through measures, are used to better understand the attributes and relationship between the attributes of architecture that we create...

The improvement of the currently used processes and quality assurance mechanisms is an important part of software engineering. In our work, we apply machine learning techniques to metric data with the aim to provide techniques that improve the state of the art. Machine learning has the advantage of being unbiased, whereas experts instinctively use their intuition and expertise, which may be bia...

The aim of every software product is to achieve an appropriate level of software quality. Developers and designers are trying to produce readable, reliable, maintainable, reusable and testable code. To help achieve these goals, several approaches have been utilized. In this paper, refactoring technique was used to evaluate software quality with a quality index. It is composed of different metri...

Complexity is always considered as an undesired property in software since it is a fundamental reason of decreasing software quality. Measuring the complexity using some metrics is one of the important factors that were made by many research activities in order to avoid complex software. In this paper, we analyze the effectiveness of complexity in security, maintainability and errors prediction...

Over the past several years, we have been developing methods of measuring the change characteristics of evolving software systems. Not all changes to software systems are equal. Some changes to these systems are very small and have low impact on the system as a whole. Other changes are substantial and have a very large impact of the fault proneness of the complete system. In this study we will ...