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It is assumed that stability and maintainability are relating to each other. We attempt to verify and validate this assumption in object-oriented paradigm. Two candidate metrics were chosen, one for stability and one for maintainability. CSM is used in stability due to its high accuracy and wide coverage. MI was chosen for maintainability due to its clarity, ease of use and solely based on source...
In a traditional sense, ownership determines rights and duties in regard to an object, for example a property. The owner of source code usually refers to the person that invented the code. However, larger code artifacts, such as files, are usually composed by multiple engineers contributing to the entity over time through a series of changes. Frequently, the person with the highest contribution, e...
Measuring the internal quality of source code is one of the traditional goals of making software development into an engineering discipline. Cyclomatic Complexity (CC) is an often used source code quality metric, next to Source Lines of Code (SLOC). However, the use of the CC metric is challenged by the repeated claim that CC is redundant with respect to SLOC due to strong linear correlation. We test...
In software development determining the release readiness plays an essential role. The number of errors is frequently used as an important measure to decide about the quality of a software implementation. Therefore, error prediction techniques have been intensively studied in the literature for many years. Despite this, their adoption in practice is still strongly limited to date. In this paper, an...
Analytical approaches based on rigorous mathematical foundation are getting more importance in service-oriented computing (SOC) research area. Defining appropriate metrics to measure service quality attributes is one of the key activities in this context which plays an important role in construction of quality service-oriented solutions. In this paper, some metrics are introduced for measuring structural...
The absence of standard in black tea assessment was one main obstacle in its quality assurance. This research were contains process of black tea assessment software development, software problem solving concept, and the software evaluation made. This paper was a proof of simple concept that an expert system should automatically find and chose relevant parameters from relationship between raw image...
A significant number of Free Software projects has been widely used and considered successful. However, there is an even larger number of them that cannot overcome the initial step towards building an active community of users and developers. In this study, we investigated whether there are relationships between source code metrics and attractiveness, i.e., the ability of a project to attract users...
In recent literature there is still a lack of understanding how the reuse and cloning of software affects its quality. The focus of this study is to analyze the relationships between source code cloning and software quality for the case of open source software project forks (SPFs) as a kind of software reuse. In total 117 releases related to three generations of eight eMule SPFs were scrutinized....
In this paper we use the people capability maturity model (P-CMM) to focus on the improvement of people capability of software organization. Firstly, on the basis of the investigation to software enterprises in Hangzhou, the questions of P-CMM2 are abstracted and perfected further, and totally 31 questions are chosen in this research. Secondly, a questionnaire survey is conducted in software enterprises...
Software engineering process information extracted from version control systems and bug tracking databases are widely used in empirical software engineering. In prior work, we showed that these data are plagued by quality deficiencies, which vary in its characteristics across projects. In addition, we showed that those deficiencies in the form of bias do impact the results of studies in empirical...
Reliability is one of the essential attributes of the dependable software, and an important factor for quantitatively characterizing software quality. Conventional methodology is Software Reliability Growth Model (SRGM), which specifies the form of a random process that describes the behavior of software failures with respect to time. In this paper, we propose that the behavior of software failures...
In the application system, obtaining the information of the system at runtime and analyzing them are important for system adjustment. Many runtime metrics can be collected from software systems, and some statistical relationships exist among these metrics. Extracting the information of these metrics from the monitoring data and then analyzing the relationships between these metrics is an effective...
Software development cost overruns often induce project managers to cut down manpower cost at the expense of software quality. Accurate effort estimation is beneficial to the prevention of cost overruns. Analogy-based effort estimation predicts the effort of a new project by using the information of its similar historical projects, where the similarity is measured via Euclidean distance. To calculate...
Path-sensitive analysis is an important feature of static program analysis that can assist to performance the software testing and ensure the software quality. Currently most analysis models are based on symbolic execution analysis. Our approach faces on some challenges like how to deal with the "path explosion" problem due to the number of paths growing exponentially with the number of...
Studies have shown that social factors in development organizations have a dramatic effect on software quality. Separately, program dependency information has also been used successfully to predict which software components are more fault prone. Interestingly, the influence of these two phenomena have only been studied separately. Intuition and practical experience suggests,however, that task assignment...
Test coverage is a promising measure of test effectiveness and development organizations are interested in cost-effective levels of coverage that provide sufficient fault removal with contained testing effort. We have conducted a multiple-case study on two dissimilar industrial software projects to investigate if test coverage reflects test effectiveness and to find the relationship between test effort...
Model driven development (MDD) is a software engineering practice that is gaining in popularity. We aim to investigate to what extend it is effective. There is a lack of empirical data to verify the pay-offs of employing MDD tools and techniques. In order to increase the knowledge we have of the impact of MDD in large scale industrial projects, we investigate the project characteristics of a large...
With the development of computer science and technology, software has been widely applied in all kinds of business. It has been a very popular and important application system. So the quality of software causes more serious attention than before. Design by program invariant is a very important method which is used to improve quality of software. In this paper, a theory model of dynamically detecting...
Based on the fundamental quality data given by the software development centre and in accordance of the principle analysis, the project quality standard had undertaken analysis and predication. Three stages were respectively as follows: project estimation, project budget and project propagation. The three stages had co-related the differential value of workload, changes of project scope and quality...
The validation of software quality metrics lacks statistical significance. One reason for this is that the data collection requires quite some effort. To help solve this problem, we develop tools for metrics analysis of a large number of software projects (146 projects with ca. 70.000 classes and interfaces and over 11 million lines of code). Moreover, validation of software quality metrics should...
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