One of the ways to ensure people adhere to systems is to make sure all processes, are fully documented, and that all existing, and new staff are trained to use them. Compliance with the procedures then needs to be made part of each employee's performance plan, and that means everyone, from the CEO to the sweeper. Appropriate penalties need to be in place for non-compliance.
Secondly, once every process is fully documented, then you can apply for ISO 9001 accreditation. That in effect gives you a sound basis on which to work, and your organisation will be regularly audited to ensure compliance.
17th June 2017 From Australia, Melbourne