This paper introduces the requirement phase, design phase, programming phase, test phase and maintenance phase of software engineering, and analyses some problems in them.
简要介绍了软件工程中的需求阶段、设计阶段、编程阶段、检验和测试阶段、维护阶段，并对其中的一些问题作了探讨。
This paper introduces the control system of elevator based on CAN bus, analyses its hardware and software and provides hardware design and flow chat.
本文介绍基于CAN总线的电梯控制系统，并对总体方案、软硬件设计作了分析，给出了具体设计电路以及软件流程图。
Above the analyses, this thesis explains the hardware and software of the design in detail.
在以上分析的基础上，从硬件和软件两个方面详细阐述了无线数据传输模块的具体设计。
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