Given the general dissatisfaction of employees and HR professionals with performance appraisal systems, how can performance appraisals be improved?

Which performance method would you say you like the most and the one that you like the least?  Please share why you chose these two. For the most effective, how it is effective in doing the following: providing fair and reliable ways of differentiating employees; targeting and rewarding those who most deserve it; setting forth a fair and cost-effective plan for compensation; and motivating and ensuring the performance of employees. For the least effective, how it interferes with the above four items.

?In your Openion, Why are tests and other screening tools an important aspect of employee selection

Describe the benefits of obtaining business needs in the context of business performance management.