Centralised and decentralised use of ICT: Documents such as the Australian Government Architecture Reference Models (AGIMO, 2011), imply an organisation has just one way of working. But Neil Ward-Dutton in his blog Real-world Enterprise Architecture part II (2007b) says that large organisations are rarely truly centralised and actually use a federated style of IT work. Give examples from Nestle, of centralised or decentralised use of ICT and its implications for energy savings strategies..