Time Constraint 1
- For the entire time that the employee works at the enterprise, exactly one valid info-type record must exist at any one time.
- The validity periods of the individual records must not overlap.
- If a new record is created, the system automatically uses the start date of the new record as the delimitation date of the old record.
- Gaps are only allowed between the employee’s entry date and the start date of the first record.
Time constraint 1 must be used for all of the info-types containing information that must be available at all times. This is particularly true of personal and organizational assignment data.
If a record is delimited because of time constraint 1, the system displays an appropriate message.
Time Constraint 2
- No more than one valid record can exist at any one time.
- Records with constraint 2 must not overlap.
- Their existence is not compulsory.
- Note that the first 2 conditions are pretty much similar to Time Constraint 1, except the third condition.
- If a new record is created, the system automatically delimits the previous record, if one exists.
If a record is delimited because of time constraint 2, the system displays an appropriate message.
Time Constraint 3
- Any number of valid records can exist at any one time.
- The individual records do not conflict with each other.
The system also contains the following time constraint indicators:
Time Constraint A
Info-types with time constraint A must have no more than one record. The system automatically assigns the record a
validity period from January 01, 1800 through December 31,9999. This validity period cannot be subdivided.
Info-type records with time constraint A cannot be deleted.
Time Constraint B
Info-types with time constraint B must have no more than one record. The system automatically assigns the record a
validity period from January 01, 1800 through December 31,9999. This validity period cannot be subdivided.
Info-type records with time constraint B can be deleted.
Time Constraint T
Info-type records with time constraint T depend on the subtype.
The principles of data entry and time constraints that apply to info-types ensure that data is consistent and accurate. They also constitute the basis of time recording, payroll accounting, and reporting.
Time Constraint Z: Time management Info-type T554Y
For some time management info-types, the record is for the time period (which may be a part of the day)
Example of various time constraint is as follows:
Info-type number
0001
0041
0022
0003
0031
0006
2001