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1、 项目名称Project Name密级Confidentiality Level仅供收件方查阅项目编号Project ID版本Version文档编号Document CodeProject ID_SD_001XX Software System Design SpecificationXX软件系统设计说明书Prepared by 拟制Date日期yyyy-mm-ddReviewed by 评审人Date日期yyyy-mm-ddApproved by批准Date日期yyyy-mm-dd 版权所有 不得复制Copyright BroadenGate Technologies, Co., Ltd.
2、All Rights ReservedRevision Record修订记录Date日期Revision Version修订版本CR ID /Defect IDCR/ Defect号Sec No.修改章节Change Description修改描述Author作者Catalog目 录1Introduction 简介61.1Purpose 目的61.2Scope 范围61.2.1Name 软件名称61.2.2Functions 软件功能61.2.3Applications软件应用62High Level Design概要设计62.1Level 0 Design Description第0层设计描
3、述72.1.1Software System Context Definition 软件系统上下文定义：72.1.2Design Considerations (Optional)设计思路(可选)82.2Level 1 Design Description第一层设计描述82.2.1Decomposition Description分解描述92.2.2Dependency Description依赖性描述102.2.3Interface Description接口描述112.3Level 2 Design Description （Optional）第二层设计描述（可选）122.3.1Modul
4、e name (1) 模块1名称132.3.2Module name (2) 模块2名称142.4Configuration and Control （Optional）配置和控制（可选）142.4.1Startup 启动142.4.2Closing 关闭142.4.3Creating MIB Table Item MIB表项的创建142.4.4Deleting MIB Table Item MIB表项的删除142.4.5Modifying MIB Table Item MIB表项的更改142.5Database （Optional）数据库（可选）152.5.1Entity, Attribut
5、es and their relationships 实体、属性及它们之间的关系152.5.2E-R diagram 实体关系 图153Detailed Design 详细设计153.1Module 1 Detail Design 模块1详细设计153.1.1Data Description 数据描述163.1.2Function Description 函数描述173.2Module 2 Detail Design 模块2详细设计203.3Error Process 错误处理203.3.1System Error 系统错误203.3.2Interface Error 接口错误203.3.3P
6、rotocol Error 协议错误20Keywords 关键词：软件设计说明书Abstract 摘 要：本文档表述了XX软件的具体设计List of abbreviations 缩略语清单：Abbreviations缩略语Full spelling 英文全名Chinese explanation 中文解释1 Introduction 简介1.1 Purpose 目的This section should state the purpose of this document. The intended reader should also be specified here. 这部分要描述文档
7、的目的，并指明文档的读者。1.2 Scope 范围1.2.1 Name 软件名称Identify the software by name.对软件命名。1.2.2 Functions 软件功能Explain what the software product(s) will and will not do (either directly or by reference to another related document).解释软件产品将完成或不完成的功能（可以直接描述也可以参考相关文档）。1.2.3 Applications软件应用Describe the application of
8、the product (either directly or by reference to another software document)描述软件的应用（可直接描述也可以参考其他软件文档）2 High Level Design概要设计 2.1 Level 0 Design Description第0层设计描述2.1.1 Software System Context Definition 软件系统上下文定义：Describes the network organizing mode of the software system in actual environment (usual
9、ly in drawings).Describes how the software system forms a functional entity with other external entities (usually in drawings).首先描述本软件系统在实际环境的组网方式（一般用图描述）描述系统如何与外部实体一道组成功能实体（一般用图描述）This section describes relationships between the software system to be developed and external entities. Architecture di
10、agram, Top level DFD (Data-Flow-Diagram) or transaction diagrams can be used to describe architecture and interaction.本节还要描述待开发软件系统与外部实体的关系.，可以使用系统架构图、顶层数据流图、事务图等来描述系统结构和交互关系。All external entities of the software system (defined in Procedure of Design Specification) that interact with the software s
11、ystem, or affect the software system in a certain mode, for example, OS, driver, hardware, interrupt or other software systems.The property (such as message, library invoking) and type (such as OS service, communication service, system tools, etc.) of the interaction between external entities and th
12、is system. Only the contents that are helpful in the software design should be included while describing the features of an external entity. Instead of a complete description in this specification, you can make indexes to refer to the relative documents that describe the software design. For example
13、, an index can be made for the programming guidance of the OS.所有系统外围实体(在设计规格流程中有定义)，这些实体与软件系统发生交互作用或以某种方式影响软件系统，比如，操作系统，驱动程序，硬件，中断，其他软件系统等.外围实体和本系统相互作用的性质(比如，消息，库调用)和类型(比如，OS服务，通信服务，系统工具等)。描述外部实体的特性时要注意该描述一定要有助本软件的设计和描述。 为了本文档内容的完整性，可以采用对于描述相关设计实体文档索引的方式：如对于操作系统编程手册的索引2.1.2 Design Considerations (Op
14、tional)设计思路(可选)2.1.2.1 Design Methodology 设计方法Describe design methodology that shall be used in the software system design.描述本软件系统所采取的设计方法。2.1.2.2 Design Alternatives 设计可选方案 Analysis several alternatives of system design scheme, and specify the scheme that shall be used. 对本软件系统的几种设计方案进行分析、比较，并确定所采用的方案2.1.2.3 Design Constraints 设计约束1. Standards compliance 遵循标准Describe standards that software system shall comply with.描述本软件所遵循的标准、规范2. Hardware Limitations 硬件限制
