SOFTWARE METRIC PROPOSAL FOR CONFORMITY CHECKING OF CLASS DIAGRAM TO SOLID DESIGN PRINCIPLES

• Main Author: Oktafiani, Intan
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/69616
• Institution: Institut Teknologi Bandung

The problem was found that there were no metrics to measure the suitability of class diagrams to the SOLID Principles, these measurements were needed to help developers get an indication of the level of quality of the design without having to examine one by one subjectively. The application of the design principle at the beginning of the development phase is one way to produce quality software. The principle of SOLID design is one of the guidelines for object-oriented software design which consists of 5: Single Responsibility Principle (SRP), Open Closed Principle (OCP), Liskov Substitution Principle (LSP), Interface Segregation Principle (ISP) and Dependency Inversion Principle (DIP ) The application of this principle to software development is able to meet quality factors to be more easily understood, more flexible, easy to maintain and can be tested. The operasi used in this study is to analyze the relationship between the concepts of SOLID principles with class diagram metrics, the metrics for each principle are produced and the measurement techniques for class diagrams fit. For SRP, a Value of SRP is proposed, as well as other principles: OCP - VOCP (Value of OCP), LSP - VLSP (Value of LSP), ISP - VISP (Value of ISP) and DIP - VDIP (Value of DIP). Metric validation is done by using 15 class diagrams from 7 software applications. The metric value is searched for correlation with the results by ahlis using Spearman’s Rank Correlation. From the results of the validation, it was found that 4 metrics have a strong, significant and unidirectional correlation and metric that weak and insignificant correlate metric, namely the SRP Metric. From the results of the validation, also found the correlation between metrics, namely between SRP Metrics and LSP Metrics and LSP and ISP Metrics. The correlation shows that the value of one of the metrics increases so that other metrics also rise. Based on the results of the validation, the conformity value produced can help developers so that they can be re-checked and prevented as early as possible so as to minimize errors at the next stage of development.