Quality Quality A system must meet its user requirements. Something that is easy to maintain and reusable ,portable etc.

Quality tools These tools are used for problem solving and root cause analysis etc.

• Pareto Analsys-80 percent of the problems lie in 20 percent area. So if one module contains 80 percent of the problems fixing that one module can help fix 80 percent of the problems.
• Cause-Effect Diagram-Ishiqava diagram It shows various causes and the effects and problems they lead to.
• Scatter Diagrams-To understand relation between 2 entities.