The world is not same for different people. Individuals may look at the same thing differently. A manager may evaluate an assistant who takes time to decide things, as thorough and thoughtful. Another may interpret such behavior as slow, disorganized and afraid of taking prompt decisions. Thus, most often, we do not see reality. We interpret what we see and call it reality. This is literally means perception. It is relevant for managers and organizations because it affects important outcomes such as whether employee supports change in the organization, the extent to which they support it etc. perception interacts with our worldview, molds our attributions and it is process through which we interpret our reality. Perception is thus defined as a process by which individuals organize and interpret their sensory impressions in order to give meaning to their environment. Three elements shape perception: the perceiver, the target or the perceived and the context or the situation within which perception occurs. The accuracy of our perception is limited due to errors of judgment that also include our biases. There are attributes of each of these elements that shape the perception by interacting among themselves.
Image source: http://blog.ocad.ca/wordpress/gdes1b26-fw2010-19/2011/01/figure-ground-relationship-good-continuation-and-highlighting/