This is an APP for project site management and field equipment maintenance, and needs to be used in conjunction with the Jobdone web platform. Jobdone mainly targets the upstream and downstream management of construction, supervision, owners, agencies, contractors, suppliers, dispatchers and other industries in the construction industry. Jobdone is not only a cloud-based mobile application, but also a cross-organizational communication platform. It provides applications such as delivery, inquiry and doubt resolution, defect improvement and reporting, work dispatching, and dispatching between upstream and downstream. The ultimate goal is to reduce costs and barriers across organizational boundaries while reducing paper consumption to achieve ESG goals.