Creativity and sensitivity to relationship issues are essential capabilities for overcoming problems in closely related and highly integrated supply chains. Only a constructive attitude, visionary leadership and a strong commitment to joint success can enable maximum supply chain integration. Purchase contracts can take many forms depending on the duration of the contract, the number of participants in the contract, the price base of the agreement and the scope of work. In terms of duration, contracts can be one-off, short-term, long-term or always green. In terms of sourcing strategy, contracts can include a single supplier or constitute a panel contract with several suppliers. As for the price base, the contract can be a fixed price, a single rate or a cost-plus contract. In the construction industry, the contractual strategy can impact the roles and responsibilities of the parties. . . .