The ITIL approach is recognized as the best set of standards for the management and delivery of IT services, which is why it is widely used worldwide. ITIL complements numerous project management frameworks such as PMP or PRINCE2. Thanks to this, it works in many companies, regardless of the strategy adopted. The biggest advantages of applying ITIL standards are: process integrity and stability, efficient implementation of changes, high transparency and cost control, as well as optimization of resource use and better risk management. All of this translates to the better quality of the service, and thereby to client satisfaction.