The 6 principles of the socio-technical approach are:
1. Compatibility: The system should be compatible with the organization's objectives, users' skills, and environment. Technology should support and not interfere with organizational activities.
2. Optimization of social and technical elements: The system's social and technical elements must be jointly optimized to ensure system success. This means keeping a balance. Improvements in one aspect should not deteriorate the other.
3. Adaptability: The system should adapt to environmental changes, like market shifts or regulatory adjustments.
4. Human Values: The system should consider the values, comfort, safety, and satisfaction of all stakeholders, leading to a work environment that encourages employee well-being and productivity.
5. Socio-technical Systems are Irreducible: The system viewed as a whole differs from the sum of its parts. Unintended consequences may arise from changing a single component, affecting the entire system.
6. Variety: The systems should be designed to handle the maximum variety of tasks, situations, or problems.
These principles' clear understanding and application lead to more effective and sustainable system designs.