In simple terms an ERP is a collection of software applications sitting onto of a database all accessed through user interfaces. ERP are central enterprise systems and provide a wide range of functionality to users at all levels of the business. What a business will use an ERP for depends on the type of data processed and stored in the system. If for example, your business stores inventory information in the database it can use inventory management applications that will allow finance and procure teams to maintain optimal stock levels, respond to surges in demand, set pricing and much more.