Metrics and models in software quality engineering. Software assurance metrics and tool evaluation samate. In chapter 5 it introduces you to the queen bee, around which the all concepts and fundaments of the quality assurance revolve, i. As a baseline, the quality metrics your team tracks should be. Clipping is a handy way to collect important slides you want to go back to later. Basically, as applied to the software product, a software metric measures or. Software quality assurance abstract high complexity, invisibility of the product and opportunity to detect the defects provided the uniqueness which will meet the challenges for. Halsteads software physics or software science n1 no. Using quality metrics and security methods to predict. Software quality assurance without measures is like a jet with no fuel. Real people just like you are kissing the idea of punching the clock for someone else goodbye, and embracing a new way of living. More importantly, they give insights into your teams test progress, productivity, and the quality of the system under test.
Software quality metrics software metrics can be classified into three. A metricsbased approach to technical documentation quality. I am looking for 3 examples of how i can use functionpoint measure in quality control or assurance over some other simpler measures i. Successful tests cases total number of test cases x 100. Thanks for contributing an answer to physics stack exchange. Society for software quality ssq washington, dc area chapter software assurance metrics and tool evaluation samate overview by.
Because development and qa processes vary greatly from team to team, the measurements that matter can be different depending on the team makeup, tools and software used, customer expectations and more. Successful software quality assurance is highly dependent on software metrics. Software quality assurance sqa is a process that ensures that developed software meets and complies with defined or standardized quality specifications. Software metrics have a direct link with measurement in software engineering. A software metric is a measure of software characteristics which are quantifiable or countable. Security is a key aspect to establishing software assurance. Quality assurance is defined as the auditing and reporting procedures used to provide the stakeholders with data needed to make wellinformed decisions. In software engineering, a metric is a property of software that you can measure. Even if a metric is not a measurement metrics are functions, while. As part of your pqi program, you can record your metrics metric and work at. The practice of applying software metrics to operational factors and to maintain factors is a complex task.
Asq, or the american society of quality, developed the following formula for cost of quality. The treatment of the topics is crisp and accompanied with. The software quality group develops tools, methods, and related models for improving the process of ensuring that software behaves correctly and for identifying software defects, thus. No way to measure property directly or final product does not yet exist for predicting, need a model of relationship of. We can accurately measure some property of software or process. Software testing metrics improves the efficiency and effectiveness of a software testing process. These are more closely associated with process and product metrics than with project metrics. It defines ways to assess the effectiveness of how one. A software testing metric and a kpi, test case quality, helps evaluate and score the written test cases according to the defined criteria. The software assurance metrics and tool evaluation samate program is designed to develop metrics for the effectiveness of sa techniques and tools and to identify deficiencies in.
This book introduces software quality assurance sqa and provides an overview of standards used to implement sqa. Pick the ones that you think are meaningful, then rate away. Software metrics are used to measure the quality of the project. Management with metrics of specification, and mermaid from october 198892 metrication and. Software metrics are used to obtain objective reproducible measurements that can be useful for quality assurance, performance, debugging, management, and estimating costs. Cost of quality is one of the most important, yet often overlooked, metrics to monitor. Software quality metrics in quality assurance to study the. Now customize the name of a clipboard to store your clips. Agile metrics are used to find out ways to enhance the process of software development. Mastering software quality assurance is a comprehensive reference on quality assurance as it pertains to software development that addresses all four dimensions of quality.
Usually, lead time, cycle time, team velocity, open and close rates are taken into account. Software quality metrics are a subset of software metrics that focus on the quality aspects of the product, process, and project. Using these measures, you can track the progress of your qa team over time and. Lead time determines the time taken by a team to generate ideas, develop and deliver a software product. The book covers the methodologies, techniques, and underlying concepts used in software quality assurance and testing. The nist samate software assurance metrics and tool evaluation project is dedicated to improving software assurance by developing methods to enable software tool evaluations. If thats not the case, one should clarify back with the client if what heshe really wants is. The purpose of gathering measurements and metrics of software products and projects is to. Development of high quality software is very complicated and unreliable task, but the management of software. Search for web quality metrics and youll find hundreds, if not thousands. Based on the passed or failed rates of all the tests executed by the software testers, the quality ratio, is used as both a software testing metrics as well as a kpi.
Software metrics massachusetts institute of technology. A software metric is a standard of measure of a degree to which a software system or process possesses some property. Simply, a metric is a unit used for describing an attribute. Develop and execute software test plans in order to identify software problems and their causes. A metric is a quantitative measure of the degree to which a system, system component, or process possesses a given attribute. I should think it is the clients onus to indicate your team what quality metrics heshe wants to see. Samate software assurance metrics and tool evaluation. I suppose you could find a book by some expert who.
Based on software quality metrics, the results of this study indicate that the. Touch devices users can use touch and swipe gestures. Metrics on the use of metrics serve as one measure of your practice quality. Software testing metrics or software test measurement is the quantitative indication of extent, capacity, dimension, amount or size of some attribute of a process or product. Software quality metrics can be further divided into three categories product quality metrics. The true cost of quality includes both the cost of poor quality and investments in good quality. Software quality assurance test engineer jobs, employment. Metrics can be defined as standards of measurement. A software quality assurance tool proceedings of the. Apply to quality assurance engineer, software test engineer, vice president of quality and more. This is the single best book on software quality engineering and metrics that ive encountered. A measurement based software quality framework 219 moreover, even if the decision is supported by measurement, different metrics, different data collection and visualisation. Web application quality metrics software quality assurance. Quantitative measurement of scientific software quality.
Performance metrics are essential to either eliminate or remove the variations in the product or process. Software metrics are important for many reasons, including measuring software performance, planning work items, measuring productivity, and many other uses. A measure of some property of a piece of software or its specifications. Kpi library is a community for performance management professionals. No way to measure property directly or final product does not yet exist for predicting, need a model of relationship of predicted variable with other measurable variables. Nist software assurance metrics and tool evaluation.
1087 1156 531 952 702 1475 584 147 867 591 568 845 1111 789 929 909 856 788 161 1184 33 1230 429 318 1204 1069 664