Enterprise likely to go through en route to a virtual value chain

What stages is an enterprise likely to go through en route to a virtual value chain?

This first step they would go through is the visibility stage which is a information system that allows participants to know exactly where their products are at all times. This is usually internally but crates value throughout the chain when they are opened to suppliers and customers. The second step is mirroring which is described as the creation of information systems that  represent each step in the value chain. This allows customers to oversee activities.  This is that transfer from paper to documents to digital copies that provide real time data. The third step is the potential to  add value to customers. This includes opening internal systems or adding features to the system such as wireless access to order status .