Audit - Review - Agreed Upon Procedures
Understanding and managing the reporting requirements of your organisation can be a confusing process. Audits offer the highest level of assurance and the best value for an organisation. However, they are not always the only option.
In fact there are three main types of assurance engagements that an auditor can perform:
agreed upon procedures.
Each of these different types of engagements have different methodologies and provide different levels of assurance.
Audit Guide - Levels of assurance