The app GTR supports the engineer with predefined checklists for documentation during testing or construction of the power plants. Employees, subcontractors or customers import templates and use them for a fast, professional and complete absorption of construction progress or lack locally. This includes the assessment of individual test points, recording comments and taking pictures. After all information have been collected on site the user may export a final report without any additional works back in the office. The report can be adapted individually by the user himself.