- Roles and Responsibilities Quality plan explains the roles and responsibilities of individuals involved in quality assurance/quality control process. It includes activities to be done by stakeholders of the project. Roles and responsibilities define who is responsible for what activity, at each stage of development. It is a good practice to generate responsibility matrix with people involved in doing different activities and representing different positions in columns while activity list is along each row. Table 14.2 represents a typical distribution of roles and responsibilities. It may change from project to project/organization to organization/customer to customer.