摘要：In order to better achieve its goals, any project is logically divided into phases that are composing the project life cycle. The name and number of these phases are industry dependent, so they are completely different from one field of activity to another. Typically, the phases are scheduled sequentially but in some cases a project may take clear advantages by running the phases concurrently. In contrary, according to the PMI’s point of view, the project management methodology (also known as the project management process) is not depending by the industry or project type, so any kind of project, from any field, will use the same five process groups – initiating, planning, executing, monitoring & controlling and closing. The total costs related to quality efforts performed during a product lifecycle are known as COQ (Cost of Quality). Large software development projects need to pay a special attention to quality since failures can lead to money lost due to rework, warranties, liabilities or even lost business. In the modern economy, the Pareto principle was quickly extended to quality control, stating that most defects in production are the direct result of only a small percentage of the causes of all defects
关键词：Modern Quality Management; Cost of Quality; Total Quality Management;Marginal Analysis; the Vital Few; Project Phases; Project Life Cycle; Project Management;Methodology; Project Management Process; Phase to Phase Relationships
