1      引言

 

                                                                                                                                                  

 

 

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1.1

       编写目的

 

                                                                                                                                 

 

 

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1.2

       背景

 

                                                                                                                                         

 

 

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 2  

1.3

       定义

 

                                                                                                                                         

 

 

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 2  

1.4

       参考资料

 

                                                                                                                                 

 

 

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2      任务概述

 

                                                                                                                                         

 

 

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 3  

2.1

       目标

 

                                                                                                                                         

 

 

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 3  

2.2

       用户的特点

 

                                                                                                                             

 

 

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 3  

2.3

       假定和约束

 

                                                                                                                             

 

 

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3      

 

需求规定

 

                                                                                                                                        

 

 

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3.1

       对功能的规定

 

                                                                                                                         

 

 

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 3  

3.2

       对性能的规定

 

                                                                                                                         

 

 

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3.2.1

 

     精度

 

                                                                                                                                     

 

 

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3.2.2

 

     时间特性要求

 

                                                                                                                    

 

 

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3.2.3

 

     灵活性

 

                                                                                                                                

 

 

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3.3

       输人输出要求

 

                                                                                                                         

 

 

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 4  

3.4

       数据管理能力要求

 

                                                                                                                 

 

 

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3.5

       故障处理要求

 

                                                                                                                         

 

 

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3.6

       其他专门要求

 

                                                                                                                         

 

 

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4      运行环境规定

 

                                                                                                                                

 

 

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4.1

       设备

 

                                                                                                                                         

 

 

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4.2

       支持软件

 

                                                                                                                                 

 

 

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 5  

4.3

       接口

 

                                                                                                                                         

 

 

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 6  

4.4

       控制

 

                                                                                                                                         

 

 

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