"The Quality 4P's Model Guidebook for Chapters 6 & 7" is the last book in "The Quality 4P's Model" series. It discusses the "Change Rates (External Influences)" concepts and the "Four Steps Conditional Rights" of the Model. "The Quality 4P's Model Guidebook for Chapters 6 & 7" is to be used in conjunction with "The Quality 4P's Model Handbook" and other "Quality 4P's Model" series Guidebooks as needed.