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

complete documentation is really important,specially when dealing with performance management because firstly it help to assess the performance of the employees Accurate and complete documentation is very important specially when dealing with performance management because firstly strong and concreat prouf sholud be collected in order to show the employee.

second reason is that if the company has to dismiss the employees and if trade union interfere so the company need this document showing the poor performance of the worker.  

and the third one,decision making will depend mainly on the documentation which has been made. for example if the employee should counsel, suspended or dismiss or if the employee need training

Example of a complete document