Quality measurement of software based on characteristics of functionality, reliability, and maintainability

The purpose of this study is to determine the level of quality of software 'application of software cost estimation ' which is a product of previous research that will be opened to the public. Testing uses the ISO 9126-1 standard that applies internationally. The ISO standard is chosen because it has complete quality characteristics. The characteristics tested in this study are functionality, reliability, and maintainability. These three characteristics are the factors that most influence the quality of the application. The results of this study are quality measurement values based on ISO 9126-1 and recommendations for improving application quality. After measuring the application/software quality, we know that the characteristics of functionality and reliability are very good, while the maintainability characteristics are still in the bad category. Required to add some features such as to record the activity log, to diagnose the application, and to test features which are installed in the application. Finally, the procedures, methods, and metrics used in this study can be adopted for other software quality testing. Adjustments, as needed, are needed with the condition of the software object being tested.