Software Design Quality Review in Object-Oriented Development

Abstract

Software design quality review is an important practice in object-oriented development where class structure, object responsibilities, inheritance, interfaces, and interactions must be evaluated before implementation becomes difficult to change. In enterprise projects, poor design quality can lead to tight coupling, weak cohesion, duplicated behavior, unclear abstractions, misuse of inheritance, and increased maintenance effort. This article discusses how structured design quality reviews help identify design weaknesses early and improve the reliability of object-oriented systems. It explains the role of class diagrams, sequence diagrams, responsibility assignment, interface review, design pattern usage, dependency analysis, and traceability with requirements in assessing design quality. The article also highlights common challenges such as incomplete UML models, over-complex class hierarchies, unclear object collaboration, and poor alignment between design documents and source code. A structured review approach is presented to improve modularity, testability, reusability, and long-term maintainability. The study concludes that effective design quality review strengthens software architecture, reduces downstream coding defects, and supports reliable delivery of object-oriented applications.