In the last logistics class on 14/05/2010 we have talked about material and information flow.
I have found a book that gives a very comprehensive example on this topic.
Logistics Management and Strategy: Competing Through The Supply Chain
- Alan Harrison, Cranfield School of Management
- Remko Van Hoek, Professor of Supply Chain Management at The Cranfield Centre for Logistics and Supply Chain Management and Vice President Procurement at Nuon in the Netherlands
A preview on this book can be found here: http://www.pearsonhighered.com/educator/academic/product/0,3110,0273712764,00.html
The example for material flow and information flow is described as follows:
The concept of a supply chain suggests a series of processes linked together to form a chain. A typical Tresco (UK's largest food retailer) supply chain is formed from five such links.