If you want to determine who is allowed to enter where and when (and who is not). Or you want to know which people are in the building or on your premises or you want to give remote access, an access control system is the perfect solution. Provided that you know exactly what you want to achieve, what the secondary objectives are and whether an access control solution really suits the culture of your organization.
A new access control system has a large impact on the organization. Only if you recognize problems early and find an appropriate solution, your access control will be successful.