Perform quality assurance includes

a$)$ Applying the planned, systematic quality activities to ensure that the project employs all processes needed to meet requirements

b$)$ Identifying which quality standards are relevant determining how to satisfy them

c$)$ Monitoring specific project results to determine if they comply with relevant quality standards and identifying ways to eliminate causes of unsatisfactory performance

d$)$ All the activities of the performing organization that determine quality policies, objectives, and responsibilities so that the project will satisfy the needs for which it was undertaken