HR Metrics and Analytics are no longer 'nice to haves' but are now  'must haves.' CEO's  have become more demanding of data related to people.  They want to make decisions that are backed by relevant and accurate data.  You must be able to track appropriate efficiency and effectiveness metrics internally, but more importantly USE the people data to determine which employee investments will produce the best results for the organization.  By converting metrics already present in most HR departments to valuable analytics,  you can gain insights into the business arming line management with timely information making your operations more effective.