Hi Liz, I didn't really understand what they meant by job codifications....
In many companies, all jobs are tied to a job description. Then these jobs are classified as technical or non-technical and thereafter graded. All grades would have a different base pay structure, with min, mid, and max. The jobs are also identified using codes called job codes, and we can see this in the Dictionary of Occupational Titles.
As far as HRIS is concerned, I feel that all are not the same. Most of the HR packages are customized to meet the administrative practices of the industry. In some cases, the HR module would be stand-alone and would generate reports for the Finance department. In our system, it is connected to the finance department, and hence, there is no need for making reports; it is all automatic. The data we enter goes on to make the final payslip at the end of the month.
If you haven't understood my explanations, call me; otherwise, wait. I am sure someone else in this forum would be able to clear your doubts.
Wishing you a very happy Christmas and New Year.