progressive elaboration

基本解释

Elaboration is the content of the teaching model of the progressive refinement of the structure.
精制就是把教材内容逐步细化的结构模式。
Progressive elaboration is a characteristic of projects that accompanies the concepts of temporary and unique.
逐步完善是项目伴随临时性和独特性两个概念的特点之一。
Progressive elaboration of a project's specifications needs to be carefully coordinated with proper project scope definition, particularly if the project is performed under contract.
项目产品技术要求说明书的逐步完善务必要与项目范围的恰当定义谨慎地协调起来，在项目是按合同实施时，尤其应当如此。