本合同的任何补充、变更和修改应当以书面方式进行，于双方授权代表共同签字之日起生效。

Any additions, changes and modifications should be carried out in writing to this contract, authorized representatives of both parties effect the date of signature.

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XML模式定义的兼容性变更增加小版本号，不修改XML模式和WSDL中的目标命名空间。

A compatible change in the XML Schema definition increments the minor version number and does not change the XML Schema or WSDL definition target -namespaces.

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工作项(Work Item)编辑器允许您创建或修改某个工作项，变更其状态，添加注释、附件和指向其他构件的链接。

Work item editor lets you create or modify a work item, change its state, to add comments, attachments, and links to other artifacts.

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