You have already introduced the performance assessment system. You may refer to that system or book itself. As you know, it is all about the performance of the person for his increment. There are mainly two kinds of fields in performance: Core areas (Technical, Accounts, Finance, Sales, Marketing, etc.) and the other is a person's soft skills (Team building, Drive, Analytical skills, Presentation, Conflict resolution, etc.).
Apart from the awareness, knowledge, or possession of these fields, the bottom line is the achievement of the goals, targets, objectives, or activities defined by management for that employee. There is a percentage for all these attributes, defined in the Performance Assessment System.
I hope this is in line with your requirement.
Regards,
Sanjay Ghiya
Reliance, RCP