supply technology management e-commerce selection vendor spend e-procurement chain sourcing strategic eipp p2p content b2b web 2.0 3.0 catalogue optimization networks cost agents mash-ups network visibility saas enterprise software b2c systems buying guide e-sourcing intelligence business category indirect direct online auction reverse e-auction ownership total modeling scenarios what if decision analysis procure-to-pay document contract rfq rfi rfp e-rfx knowledge meta-search purchasing savings software as a service supplier virtual punch-out marketplaces catalog export ....? import entry trade global e-payment innovation
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