Draw a mechanism for the following reaction. 
Definitions:
Zero Defects
A quality management philosophy aiming for the elimination of defects through continuous improvement.
Internal and External Customers
Internal customers are employees or departments within an organization that depend on each other's work, while external customers are individuals or entities that purchase the company’s products or services.
Contingency Approach
A management theory that suggests the most appropriate organizational structure or management style is contingent upon the internal and external situation.
Evolution of Management
Refers to the historical development and transformation of management theories and practices over time.
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