It is throughout the maintenance phase that the software evolves the most.

软件的演进主要发生在整个维护阶段。

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For example, you may need to make design changes or change the planned test sequence as the software evolves.

比如，在软件进化的过程中你可能需要对设计或是计划的测试序列做出更改。

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From mapping sites to social networks, web-based software evolves much faster than desktop software, which often looks old-fashioned by comparison.

从地图网站到社交网站，网络软件的演进要比桌面软件速度快得多，相比之下，桌面软件显得过时淘汰了。

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From mapping sites to social networks, web-based software evolves much faster than desktop software, which often looks old-fashioned by comparison.

ECONOMIST: Monitor

This evolution will be a slow but steady progress, as each few years mobiles get slightly better, intelligent software evolves and the various providers of all the necessary input data, such as transport organisations and shops, gradually make the data available in formats that become increasingly useful.

BBC: NEWS | Technology | Predictions for the mobile future

Future proofed: Software rapidly evolves.

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