Recurrent information is information that is provided on a periodic basis from periodic reports. Market or customer shares, advertisement watch rates, product or service ratings, price fluctuations, exchange rates, customer complaints on product basis are some examples of this kind of information that managers receive on a weekly, monthly, quarterly or annual basis. Monitoring information is derived from the regular scanning of certain sources. For example, a marketing manager may desire a summary of articles on competition for a specific industry or may want to learn about new product launches. Market trends, life style changes are good examples of monitored information.