For Neighborhood or for Company use ?

Caused both have different platform and technologies and both also have different use scenario.

For Neighborhood use, the most common is to register visitors In/Out only.

For Company use, will usually involved something like which door visitor(s) can access, which floor, purpose of visit, meeting whom, etc.
Some Condominiums are also using such system due to their Luxury services and some residents preferred very strict privacy.

Hope it helps...