Traceability is an essential concept in the Capability Maturity Model.
追溯性是能力成熟度模型（Capability Maturity Model）中的基本概念。
On the second day the concept of natural data maturity model progression is introduced
在第 2天，介绍了数据成熟度模型的自然级数
On the second day the concept of natural data maturity model progression is introduced
在第 2天，介绍了数据成熟度模型的自然级数
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