A company runs a distribution warehouse. Its information systems constantly monitors inventory levels, with automatic re-order processing occuring with suppliers when inventory items reach a specified level. It operates a robotics system which automatically picks inventory from its location in the warehouse and delivers it to the pick-up area. The company also has a large database of customer information which it uses to analyse buying behavior and sales trends so that it can provide customers with relevant and targeted marketing information.

Which THREE of the following activities of the Value Chain have been affected by the use of IT/ IS?