The invention relates to a construction site management system and a method for providing checking instructions on a mobile device of a worker on a construction site, wherein the mobile device is connected to a server as part of the construction site management system, wherein work packages are assigned to the worker by the server. The method includes obtaining a progress report from the worker relating to the progress of a work package, and transmitting the progress report to the server, retrieving a checking plan from the server based on the progress report, and generating checking instructions based at least in part on the checking plan, the checking instructions comprising information on what feature to check, where to check the feature, and directives on how to check the feature.