Attrition (Employee Turnover in Processes)

Introduction: Attrition (Employee Turnover in Processes)

Attrition, also called employee turnover, refers to the rate at which staff leave an organisation over time. In process management, attrition highlights the loss of people and knowledge, affecting performance, efficiency, and customer satisfaction.

Background

The concept of attrition has long been studied in human resource management and organisational behaviour. Traditionally, high attrition was seen as a natural outcome of the labour market. However, in Lean and Six Sigma contexts, attrition is often treated as a form of waste, since it disrupts processes, creates instability, and generates hidden costs.

Key Elements / Features

• Voluntary attrition: Employees choose to leave, often due to job dissatisfaction, lack of growth, or better opportunities elsewhere.
• Involuntary attrition: Employees leave due to redundancies, dismissals, or organisational restructuring.
• Knowledge loss: When experienced staff leave, critical expertise and process knowledge can disappear.
• Impact on processes: Attrition may cause delays, errors, or reduced quality due to constant retraining and onboarding.
• Measurement: Attrition is usually expressed as a percentage of employees leaving during a given period.

Applications / Examples

In a call centre, high attrition might result in longer training cycles, inconsistent service quality, and customer dissatisfaction. In healthcare, losing skilled nurses can disrupt patient care and increase pressure on remaining staff. In manufacturing, attrition among technicians may reduce machine reliability and productivity. Organisations often track attrition as a key HR and operational metric.

Relevance / Impact

Attrition affects more than workforce stability; it directly influences efficiency, cost, and service delivery. Managing attrition requires proactive strategies such as improving employee engagement, offering career development, and creating a supportive work environment. In continuous improvement projects, reducing attrition strengthens process consistency and supports long-term performance.

See also

• Competence Matrix
• Employee Empowerment
• Continuous Improvement
• TWI