Compatibility and smooth upgrade from the previous software(user interface, database structure, data etc. )must be considered when the system is designed.
进行系统设计时，必须确保与原有系统的兼容，考虑原有系统的平滑升级(包括用户界面、数据库结构和数据库数据等多方面)。
参考来源 - 一个通用外贸业务软件的设计与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
Thanks to folks like Jon Galloway ensuring the upgrade process is a smooth one and only 10 steps away.
由于Jon Galloway等人，确保了升级过程是一个平稳的过程，而且只有十步之遥。
The research results show that the interworking between ATM and MPLS can support the existing services, and realize and upgrade the smooth transition of the network.
研究结果表明，AT M - MPLS网络的互通可以支持原有的业务，并实现原有网络的平滑过渡与升级。
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