Ompare and contrast agile and lean supply chains and explain the role of information systems in the operation of agile supply chains ?

1- Describe the nature of agile supply chain systems ?
2- Describe the nature of lean supply chains ?
3- Describe the factors which determine the appropriate supply chain for a given product or set of products ?
4- Explain the impact of complexity of the need for information in the supply chain?
5- Explain how information can be used to enhance aglity in the supply chain, Including a discussion of the role of material and information de-coupling points?