IBM 1130 User Manual page 86

Section
Subsections
Page
15
10
I
20 01
Jobs Involving More Than One File
The previous topic can be expanded to consider
more than one file, which is the case in many com-
mercial applications. For example, many payroll
applications involve a job cost file as well as the
employee payroll file. If an employee detail card
says that man 607 worked 12.5 hours on job 70976,
you can find man 607 in the emp loyee file and add
12.5 hours to his weekly total, then find job number
70976 in the job cost file and add 12.5 hours to its
weekly total, all within one program. A card file
system would involve:
1. Sorting and collating the employee detail
cards with the employee master cards
2. Running the program and punching a new up-
dated employee master card
3. Separating the cards
4. Sorting and collating the employee detail
cards again, this time with the job master cards
5. Running a different progrru;, this one punch-
ing a new master job cost card
6. Separating the cards and filing them
Depending on the number of cards involved, this
could be a cumbersome process. But again, some
of the considerations discussed later may override
this one.