Due to the force majeure causes any party is unable to perform a contract due to force majeure, should be in 3 days after the event notification, try to reduce the loss.

任何一方由于不可抗力原因不能履行合同时，应在不可抗力事件发生后3日内通知对方，尽力减少损失。

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These requirements are viewed as a service contract, indicating the roles that participate in the business process, the tasks that they are expected to perform, and the rules for how they interact.

这些需求被视作一个服务契约，指出参与到业务过程中的角色，希望它们这行的任务，以及它们之间相互作用的规则。

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This may be a subject for contract terms and conditions with professional services firms who perform these services.

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Those are the facts necessary to satisfy the elements of a claim for, say, breach of contract: promise, consideration, failure to perform, causation and damages, or the requirements of an affirmative defense: impossibility of performance, for instance.

FORBES: Relevance and Strategy