Quality control is a reactive tool through which quality is measured and monitored, and quality control includes all techniques and operational activities used to meet quality requirements. These techniques and activities are agreed with clients and/or stakeholders before project work begins. Quality control involves checking that output conforms to desired quality levels. This means that the ICT solution is checked against the customer's requirements, with various checks conducted at planned points in the development lifecycle. Teams will use structured walkthroughs, testing, and code inspections, among other techniques, to ensure the solution meets the agreed-upon set of requirements. Quality control is used, along with quality improvement activity, to isolate and provide feedback on the causes of quality problems. By using this approach consistently, across all projects, the feedback mechanism works to identify the root causes of problems and then develop strategies to eliminate these problems. Using this holistic approach ensures that teams achieve increasingly higher levels of