The document discusses XML as a method for data transfer between systems, highlighting three components of an XML document that ensure data reliability and validation. It identifies at least two e-commerce systems that utilize XML data integration and describes how XML extensions can facilitate integration among various stakeholders, including vendors, resellers, suppliers, and customers.

1. XML provides a method for data to be transferred between
systems. Specify at least three components of an XML
document. Analyze how each component ensures data
reliability and validation.
Identify at least two e-Commerce systems that provide XML
data integration. For each system, describe how XML
extensions could enable e-Commerce integration among system
stakeholders such as vendors, resellers, suppliers, and
customers.