Within a company:
* Project Management Office (PMO): This is a common central unit that sets standards and best practices for project management, including procedures and guidelines.
* Quality Management Team: This team focuses on ensuring quality standards are met in all projects, which often includes defining and maintaining procedures.
* Process Improvement Team: This team works on improving existing processes, which could involve updating or creating new procedures and guidelines.
* Subject Matter Experts (SMEs): Individuals with specific knowledge in a particular area might be involved in defining procedures related to their expertise.
External to a company:
* Industry Associations: Some industries have associations that develop standards and best practices, which can be used as a foundation for procedures and guidelines.
* Standards Organizations: Organizations like ISO (International Organization for Standardization) develop international standards that can be adopted by companies.
* Consultants: Companies might hire consultants to help develop or improve their project procedures and guidelines.
It's important to note that:
* In some smaller companies, the responsibility for defining procedures and guidelines might fall on the project manager or a small team.
* The process of developing and maintaining procedures and guidelines is usually iterative, involving input from various stakeholders.
To provide a more precise answer, you'll need to give more context about the specific organization and project type.