The different types of monitoring systems in the workplace can be broadly classified into two categories: active and passive. Active systems are those that require the direct participation of employees, such as time and attendance tracking systems. Passive systems are those that do not require the direct participation of employees, such as video surveillance cameras.Active systems are typically more accurate than passive systems, but they can also be more intrusive. Passive systems can be less accurate, but they can also be less intrusive. Ultimately, the type of monitoring system that is right for a particular workplace will depend on the specific needs and goals of the organization.