在分析虚拟企业更改控制特点的基础上，研究了跨企业间更改建议的发起与协商机制，给出了虚拟企业进行工程更改应遵循的原则，提出了虚拟企业进行工程更改的集成框架模型。

The mechanism of initiation and negotiation of change proposal among the ve was investigated, the principle for ECC in the ve was provided, and an integrated framework model for ECC was proposed.

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