What is the difference between supply chain management and value chain management?

The ultimate goals are strikingly similar with a few different means to achieve similar ends.

Supply chain management focuses on the ways a company obtains supplies needed in order to make and deliver a product or service to the customer maximizing both customer value and competitive edge with basic components using 5 elements- 1. plan, 2. source 3. make, 4. deliver, 5. return

Value chain management focuses on integrating time and responsiveness with the goal of maximizing resources and minimizing waste with the goal of minimizing waste, particularly by using ideas such as "Just-In-Time".

(sources-referencesforbusines.com&CIO.com)

(Clear as mud, right?)