An appropriate planning for an inspection will be carried out by the inspection requirements from desk works, which will in turn determine the types of inspection techniques needed for the project.

After collecting and organizing data, inspectors examine it to understand the condition and maintenance status of the thing they are inspecting on site. The contents of site inspections, such as inspection techniques, dimensional meansurements and site condition, will be determined by the all relevant standards, guidelines, local requirements and client's demands. The on-site inspection documents will be prepared and extra investigations will be confirmed prior to site inspections.