الفهرس 
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Abstract
Purpose: The previous generations of implemented B2B e-commerce hub solutions (e¬Marketplaces) did not successfully fulfil the requirements of buyers, and suppliers (”Participants”) in different business domains to carry out their daily business and online commercial transactions with one another because of their inappropriateness, and lack of flexibility. The limitations of these provided solutions came from a lot of architectural and technological challenges in the provided technical architectures that were used to build these solutions. These challenges are summarized in: (A) a document-centric focus rather than business-process focus; (B) the complexity of creating new business models or business services at runtime; (C) the interoperability limitations and the data transformation problems, which require huge efforts from buyers and suppliers (”Participants”) in customizing, and modifying their internal back end systems and internal business processes to join these implemented (e-Marketplaces).
Design/Methodologyl Approach: The research uses the EDI Reference model, which is provided by the ISO organization to survey and analyze the challenges of previous generations of B2B e-Commerce hubs solutions and their architectures. It capitalizes on the most advanced technologies used in e-Business domain such as (SOA-Service Oriented Architecture, business modelling, business process management, semantics ontology, and integration solutions) to build B2B e-Commerce hub solution architecture. The thesis tries to build a proposed architecture that can be used to implement vertical B2B e-commerce hubs solutions in different business domains (vertical e-market-places). The case study of the thesis assesses the capabilities of the proposed B2B e-Commerce hub architecture by applying the proposed architecture to the building of a vertical B2B e¬Marketplace for the Oil and Gas sector in Egypt.
OriginalityNalue: The main contribution of the proposed architecture comes from the creation of a clear automatic path between the layers of EDI Reference model (BOV Business Operation View layer, which represents business requirements view, and FSV Function Service View layer, which represents technology and systems requirements view. It combines both Service Oriented Architecture (SOA) and management requirements in a single framework to provide dynamic products and flexible B2B e¬Commerce services.
The capabilities of the proposed architecture to create clear automatic path between the layers of EDI Reference model comes through providing a comprehensive interoperability and business modelling solution called ”Multi Channel Framework”. It resolves most of existing B2B challenges from business modelling and integration perspectives, especially that most of existing B2B solutions relies on UMM-UML. The UMM-UML profile is not capable of providing complete solutions for the interoperability challenges, especially in messaging and document transformations between ”Participants” .
The UMM-UML profile provides vague guidelines on modelling business documents, leading to the following limitations: