Apps for tracking workers' productivity

This article from the Economist describes new software that lets employees record what they are doing and have done. It mentions the difficulty of monitoring employees. The new software purports to give management an easy way to review and to comment on an employee's work. It also says that mutual encouragement and the motivation from the intrinsic reward of seeing what you have done is the goal, not "catching" goof-offs, is the goal of one of the firms that sells the software.