During a task, inputs are transformed into outputs (also in terms of work products) with some value added to the entire process by the completion of the task itself.

在任务期间，在完成任务过程通过向整个过程添加一些值，来将输入转化为输出(对于工作产品也是)。

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These work products are produced by tasks that are performed by the roles and have work products as inputs and outputs.

这些工作产品是由任务产生的，任务由角色完成，并把工作产品作为输入和输出。

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Tasks, defined as a series of steps with a specific goal and purpose, are performed by roles and use work products (sometimes called artifacts) as inputs.

任务，定义为关于特定目标和目的的步骤，是由角色来完成的，并用作工作产品(有时也叫做组件)的输入。

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Great plans start with projections or outputs, and work their way back through the activities and money needed as inputs.

FORBES: How to Write a Plan or Proposal That Rocks