系统总体设计英文

Instruction on the System DesignSystem Design Guide

System design 好像没有争议，关键是以下的部分：Guide：如果你指的是使用手册，使用说明书的话instruction：如果你是指的简单介绍，概要介绍的话specification：如果你是指的设计书，设计规格的话仅供参考。

First, the development background of this project are analyzed, and the discussion of this topic research significance, introduces the development environment and realizing the system is the key technology used system.Secondly, separately from the feasibility analysis, requirement analysis and structural analysis of several aspects of the system is analyzed.Again, this paper discusses the system, the selection of design scheme and the overall, module design and database design, and explains the use of database.Finally, process design and QianHouTai respectively from two aspects of the interface design of the system, and introduces the detailed design of software test methods, steps, data and results

System design manual. In technical writing you use the word "manual" for 说明书, not "guide". "instruction" and "specification" are not 说明书.