employee, vendor and visitor :
Employee : have the photo affixed, use bar code to access, working hours etc.,(Company Logo Should be there)
Vendor : No Company Logo, give this with photo affixed, specify the vendor with his prime supply, gove specific id nos. Else,
Visitor : This card can be used of dual purpose as vendor/visitor - mention the name authorise the security guard with specific id no (have 5o cards serially numbered) give each card to each person either visitor/vendor and collect on leaving the company, get their licence or any other proof till their stay in the organisation, this is essential as this will make the vendor/visitor again approaching the security personnel.
Two Card is enough with different colours
best of luck ....
25th September 2017 From India, Arcot