What completes the installation of an information system is the user induction with user training.
The system designer must be a good trainer. There are many knacks of instruction which benefit her/him. Q&A contrivances, such as IT help desk, may be required.
What is mostly instructed is : what/how is "effective use" of the system, that is, the meaning of the system (in contrast to operation manual). Indeed, users must learn what enables them to work with some types of information.