说明：  CMM 软件能力成熟度模型，主要讲解软件能力成熟度模型的基本概念，以及其应用，软件过程成熟度，指一个特定的软件过程被显式定义、管理、度量、控制和执行的程度。
(CMM Software Capability Maturity Model, mainly on the software capability maturity model of the basic concepts and their applications, software process maturity, refers to a particular software process is explicitly defined, management, measurement, control and level of implementation.)