To document processes and procedures in an ISO 9001 compliant QMS, follow these best practices:

1. **Identify and Document Key Processes**: Determine the essential processes for quality management and document them thoroughly.

2. **Define Roles and Responsibilities**: Clearly outline who is responsible for each process and procedure.

3. **Train Employees**: Ensure that employees are trained on the procedures and understand their roles in maintaining compliance with ISO 9001 standards.

4. **Monitor and Measure Performance**: Regularly assess the effectiveness of processes through audits and performance measurements.

5. **Establish a Continuous Improvement Cycle**: Encourage feedback and make necessary adjustments to improve processes continuously.

6. **Document Everything**: Maintain comprehensive documentation, including process flows, work instructions, and records, to ensure traceability and consistency.

7. **Engage Leadership**: Ensure that leadership is involved in driving the QMS and aligning it with business goals.

8. **Use a Structured Approach**: Develop a consistent structure for procedures, including purpose, scope, users, reference documents, process explanation, and records.

9. **Consider Complexity and Staff Needs**: Tailor documentation to the complexity of tasks, staff rotation, training needs, and performance issues.

10. **Maintain Flexibility**: While there is no predefined style for procedures, ensure they provide enough information for activities to be carried out as planned.

By following these practices, you can create a robust and effective QMS that aligns with ISO 9001 requirements.