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1、XX High Level Design SpecificationXX 概要设计说明书Please input confidentiality level 请输入密级产品名称Product name密级Confidentiality level产品版本Product versionTotal 16pages 共16页XX High Level Design SpecificationXX 概要设计说明书Prepared by 拟制Name+ID姓名+工号Date日期yyyy-mm-ddReviewed by 评审人Date日期yyyy-mm-ddApproved by批准Date日期yyyy
2、-mm-ddXXXX Co., Ltd. XXXX有限公司 Revision Record 修订记录Date日期Revision Version修订版本CR ID / Defect IDCR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 Descriptio
3、n第零层设计描述62.1.1Software System Context Definition 软件系统上下文定义62.1.2Design Considerations (Optional)设计思路(可选)72.2Level 1 Design Description第一层设计描述82.2.1Decomposition Description分解描述82.2.2Dependency Description依赖性描述92.2.3Interface Description接口描述102.3Level 2 Design Description （Optional）第二层设计描述（可选）122.3.1
4、Module name (1) 模块1名称122.3.2Module name (2) 模块2名称132.4Configuration 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）142.5.1Entity, Att
5、ributes and their relationships 实体、属性及它们之间的关系142.5.2E-R diagram 实体关系 图14Table List 表目录Table1*表错误！未定义书签。表1*表错误！未定义书签。Figure List 图目录Figure 1*图错误！未定义书签。图 1*图错误！未定义书签。XX High Level Design SpecificationXX 概要设计说明书Keywords 关键词：Abstract 摘 要：List of abbreviations 缩略语清单： Abbreviations缩略语Full spelling 英文全名Chi
6、nese explanation 中文解释1 Introduction 简介1.1 Purpose 目的This section should state the purpose of the document. It could also specify the intended audience. 这部分要描述文档的目的。应该指明读者。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 wi
7、ll not do (either directly or by reference to another software 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 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它软件文档）2 High Level Design概要设计 2.1 Level 0 Design De
8、scription第零层设计描述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 (usually 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
9、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 Diagram, 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
10、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 system, or affect the software system in a certain mode, for example, OS, driver, hardware, interrupt or other software systems.The property (such
11、 as message, library invoking) and type (such as OS service, communication service, system tools, etc.) of the interaction between external entities and this system. Only the contents that are helpful in the software design should be included while describing the features of an external entity. Inst
12、ead of a complete description in this specification, you can make indexes to refer to the relative documents that describe the software design. For example, 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，其它软件系统等.外围实体和本
13、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 (Optional)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.
14、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Describe hardware limitations of the software system.描述本软件系统实现的硬件限制3 Technology Limitations 技术限制Describe technology limitations of the software system.描述本软件的
