International Journal of Engineering and Information Systems (IJEAIS)   Year: 2021 | Volume: 5 | Issue: 3 | Page No.: 29-34 A Survey on the Relationships between Quality Attributes of the ISO9126 Model Abdelkareem M. Alashqar Abstract: Considering quality attributes when developing software is inevitable. Quality attributes are also known as non-functional requirement that requested by software stakeholders. ISO9126 is one of the best-known quality models that includes some important quality attributes. It is not practical to develop software applications without considering the relationships between quality attributes. This is because that achieving one quality attribute will often enhance or hinder other quality attributes in the software being developed. Many research works have studied the relationships between quality attributes. In this paper we introduced a literature survey for studying and defining the relationships between quality attributes that defined by the ISO9126 quality model. We also proposed a matching mechanism between equivalent attributes that expressed differently in the current published work.