Explanation:

Human behavior is unpredictable and differs among individuals or even on the same individual at different points in time (Hunt, 2007). Human beings also differ in their abilities, background, training and experience. At the same time, Dr. Nigel Hunt notes that many problems facing most organizations today are social rather than technical or economic. It therefore goes that human resource at work is the most important component of the undertaking. It is therefore very important for organizations to measure performance of this critical resource as doing so ensures organisational success. 

Performance Management (PM) has recently dominated the Human Resource Management (HR) as a profession owing to the realization that HR is the one of the most potent source of competitiveness in today’s operating environment. Insights into performance management by leading thinkers in the recent past (Armstrong, 2009) point to the emergence of Performance Management as the most viable solution to address the productivity lag in most industries.