Online negotiation for today?s B2B e-commerce plays a promising role in assisting traders to best fulfill their business deals. But existing uncertain constraints and sophisticated strategies presented in e-trading environment make negotiation a rather complex process. As business intelligence and efficient protocols are essential to successful negotiation, we defined an object-oriented ontology Knowledge Bead (KB) for knowledge representation and enabling agent negotiation in e-trading environment [1]. This paper continues the research work of KB on formulating its theorems and methodology. Some typical negotiation paradigms using appropriate strategies based on the KB?s methodology are presented. In particular, KB?s taxonomies and their use in the negotiation process are discussed.