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

1. **Identify and Document Key Processes**: Clearly identify and document the key processes essential for quality management. This includes defining roles, responsibilities, and objectives.

2. **Structure and Clarity**: Develop a consistent structure for your documents, typically including the purpose, scope, users, reference documents, process explanation, and records.

3. **Integration and Interaction**: Ensure that processes are integrated, considering their interactions and sequence within the organization.

4. **Tailored Documentation**: Document only the activities specific to the process where nonconformities might emerge. Avoid documenting common knowledge tasks.

5. **Continuous Improvement**: Establish a continuous improvement cycle by regularly monitoring, measuring performance, and using audits to assess compliance.

6. **Leadership Engagement**: Engage leadership to drive the QMS and ensure alignment with business goals.

7. **Flexibility**: There is no predefined style for writing procedures, allowing you to tailor them to suit your organization and employees.

8. **Training and Implementation**: Train employees on the procedures to ensure alignment with ISO 9001 standards and ensure that procedures are implemented and followed.

9. **Documentation of Necessary Information**: Decide what documentation (procedures, SOPs, work instructions) is necessary for running the processes and create them accordingly.

10. **Records and Traceability**: Maintain records to ensure traceability and consistency, and retain documented information to have confidence that processes are being carried out as planned.