Review the S&OP $$Evolution$$ at Adtran case from Chapter $16$ and the subject of Blockchain from chapter $17.$ Answer the following four questions. Limit your response to $$ page per question for each of the four questions.

$1.$ What is the impact of business process on supply chain management IT$?$

$2.$ How can ERP vendors take advantage of internet technology?

$3.$ Compare the capabilities required to achieve supply chain excellence according to the following:

a$.$ Decision focus,

b$.$ Data aggregation level,

c$.$ Time to implement, and

d$.$ The number of users involved in the analysis.

$4.$ What supply chains challenges can be improved by implementing Blockchain technology?

$5.$ Describe what a Hyperledger is and how it is utilized within the supply chain.