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Simplified access rights evaluation
The model of access rights contains time schedules and a table of holidays. A block diagram
for access right evaluation can be seen on
Pic. 5.
Pic. 5: Simplified access rights evaluation
VALID
INVALID
PIN
UNKNOWN
ID FOUND
ACCESS DRIVEN
BY TIME SCHED.
ACCESS ALWAYS
GRANTED
HOLIDAY?
ACCESS GRANTED
FOR HOLIDAY
AND ACTUAL TIME
ACCESS GRANTED
FOR ACTUAL
DAY & TIME
READING ID
(and PIN)
YES
NO
YES
NO
NO
YES
Valid PIN
or reader
without PIN
NO
YES
INVALID
YES
NO
NO
YES
NO
YES
