Final answer:
The element not included in the foundation of contemporary supply chain management systems is B2B electronic storefronts, which are more about online commerce rather than the integration and management of supply chains.
Step-by-step explanation:
The foundation for contemporary supply chain management systems does not include B2B electronic storefronts. These platforms are typically associated with the commercial exchange of goods and services between businesses via online sales channels. They are not a foundational component of supply chain management, which is more focused on the integration of operations, information flow, and resource management across all segments from supplier to customer.
Contemporary supply chain systems are built on pillars that include supply chain simplification, where complexity is reduced; continuous inventory replenishment, which ensures a steady flow of stock and reduces shortages; and ERP (Enterprise Resource Planning) systems, which provide an integrated platform for managing a company's core business processes.
Advancements in technology, policies to maintain supply chains during emergencies, labor rights protection, and international and national labor policies contribute significantly to the robustness of supply chain management strategies.