The document discusses the architecture of B2B models in e-commerce, where businesses sell to intermediaries who then sell to final customers. Key technologies mentioned include electronic data interchange (EDI), the internet, intranet, and extranet, alongside various architectural models such as supplier-oriented, buyer-oriented, and intermediary-oriented marketplaces. Leading B2B e-commerce items include electronics, shipping, and food, emphasizing the importance of relationships between businesses and their partners.
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