产品名称 Product name 密级 Confidentiality level 产品版本 Product version Total 16pages 共 16 页 XX High Level Design Specification XX 概要设计说明书 Prepared by 拟制 Name+ID 姓名+工号 Date 日期 yyyy-mm-dd Reviewed by 评审人 Date 日期 yyyy-mm-dd Approved by 批准 Date 日期 yyyy-mm-dd XXXX Co., Ltd. XXXX 有限公司 XX High Level Design Specification XX 概要设计说明书 Please input confidentiality level 请输入密级 Page 2 , Total 16 第 2 页，共 16 页 Revision Record 修订记录 Date 日 期 Revisio n Version 修订版本 CR ID / Defec t ID CR 号 Sec No.修改章节 Change Description 修改 描述 Author 作者 XX High Level Design Specification XX 概要设计说明书 Please input confidentiality level请输入密级Page 3 , Total 16第3页，共16页Catalog 目录1 Introduction 简介61.1 Purpose 目的61.2 Scope 范围61.2.1 Name 软件名称61.2.2 Functions 软件功能61.2.3 Applications 软件应用62 High Level Design *既要设计62.1 Level 0 Design Description 第零层设计描述62.1.1 Software System Context Definition 软件系统上下文定义62.1.2 Design Considerations （Optional）设计思路（可选）72.2 Level 1 Design Description 第一层设计描述82.2.1 Decomposition Description 分解描述82.2.2 Dependency Description 依赖性描述92.2.3 Interface Description 接 口描述102.3 Level 2 Design Description （Optional）第二层设计描述（可选）122.3.1 Module name （1）模块 1 名称122.3.2 Module name （2） 模块 2 名称132.4 Configuration and Control （Optional）配置和控制（可选）142.4.1 Startup 启动142.4.2 Closing 关闭142.4.3 Creating MIB Table Item MIB 表项的创建142.4.4 Deleting MIB Table Item MIB 表项的删除142.4.5 Modifying MIB Table Item MIB表项的更改142.5 Database （Optional）数据库（可选）142.5.1 Entity, Attributes and their relationships 实体、属性及它们之间的关系142.5.2 E-R diagram 实体关系 图14XX High Level Design Specification XX 概要设计说明书 Please input confidentiality level 请输入密级 Page 4 , Total 16 第 4 页，共 16 页Table List表目录Table1*表错误！未定义书签。错误！未定义书签。表1 *表错误！未定义书签。错误！未定义书签。Figure List 图目录Figure 1*图错误！未定义书签。错误！未定义书签。图1*图错误！未定义书签。错误！未定义书签。XX High Level Design Specification XX 概要设计说明书 Please input confidentiality level 请输入密级 Page 5 , Total 16 第 5 页，共 16 页XX High Level Design Specification XX 概要设计说明书 Keywords 关键词：Abstract 摘 要：List of abbreviations缩略语清单：对本文所用缩略语进行说明，要求提供每个缩略语的英文全名和中文解释。 Describe abbreviations in this document, full spelling of the abbreviation and Chinese explanation should be provided. Abbreviations 缩略语 Full spelling 英文全名 Chinese explanation 中文解释 XX High Level Design Specification XX 概要设计说明书 Please input confidentiality level 请输入密级 Page 6 , Total 16 第6页，共16页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 will 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 Description 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)XX High Level Design Specification XX 概要设计说明书 Please input confidentiality level 请输入密级 Page 7 , Total 16 第 7 页，共 16 页 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 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. 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, 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。2.1.2.2 Design Alternatives 设计可选方案 Analysis several alternatives of system