6. Why is accurate and complete documentation so important in performance management, particularly when dealing with employee underperformance?

The accurate an complete documentation is important in performance management as it is a key factor for mangement assess employee's performance.  It helps to easily finding solution to improve employee's communication and ways of doing the work rapidly and better.

Good documentation procedure always help to reduce possibility of many rating errors and also justify evaluations and resultatnt administrative desion.  It also helps to have reliable, exact specific and factual information for the progress of the company. 

This procedure also helps to :

1. Identify the weaknesses of the employee
2. Be able to indicate if any improvement is needed like training. 
3. Identify if counselling to employee is required.
4. Know if individual development plan is required.