软件概要设计模板.docx
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1、_产品名称Product name 密级Confidentiality level 产品版本Product version XX High Level Design Specification XX 概要设计说明书 Catalog 目 录 1 Introduction 简介 . 6 1.1 Purpose 目的 . 6 1.2 Scope 范围 . 6 1.2.1 Name 软件名称 . 6 1.2.2 Functions 软件功能 . 6 1.2.3 Applications软件应用 . 6 2 High Level Design概要设计 . 6 2.1 Level 0 Design Des
2、cription第零层设计描述 . 6 2.1.1 Software System Context Definition 软件系统上下文定义 . 6 2.1.2 Design Considerations (Optional)设计思路(可选) . 7 2.2 Level 1 Design Description第一层设计描述 . 8 2.2.1 Decomposition Description分解描述 . 8 2.2.2 Dependency Description依赖性描述 . 9 2.2.3 Interface Description接口描述 . 10 2.3 Level 2 Desig
3、n Description (Optional)第二层设计描述(可选) . 12 2.3.1 Module name (1) 模块1名称 . 12 2.3.2 Module name (2) 模块2名称 . 13 2.4 Configuration and Control (Optional)配置和控制(可选) . 14 2.4.1 Startup 启动 . 14 2.4.2 Closing 关闭 . 14 2.4.3 Creating MIB Table Item MIB表项的创建 . 14 2.4.4 Deleting MIB Table Item MIB表项的删除 . 14 2.4.5
4、Modifying MIB Table Item MIB表项的更改 . 14 2.5 Database (Optional)数据库(可选) . 14 2.5.1 Entity, Attributes and their relationships 实体、属性及它们之间的关系 . 14 2.5.2 E-R diagram 实体关系 图 . 14 1 Introduction 简介 1.1 Purpose 目的This section should state the purpose of the document. It could also specify the intended audie
5、nce. 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
6、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 a
7、ctual 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)This section describes relationships between the software system to be developed and externa
8、l 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) tha
9、t 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 b
10、etween 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 t
11、he 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。2.1.2 Design Considerations (Optional)设计思路(可选
12、) 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
13、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 s
14、ystem.描述本软件的技术限制 2.1.2.4 Other Design Considerations 其它 Describe other design considerations of the software system.描述其它有关的设计考虑 2.2 Level 1 Design Description 第一层设计描述 Architecture of the software system shall be described here. 这里要描述软件系统的总体结 构。 Structure chart, Hierarchical decomposition diagram, na
15、tural language can be used to represent the architecture.总体结构描述可以使用结构图,层次分解图,自然语言。 2.2.1 Decomposition Description 分解描述 2.2.1.1 Module/Subsystem Decomposition 模块/子系统分解 This section describes subsystems ,module in the system.本节描述系统中的子系统和模 块。 1 Module/Subsystem 1 Description 模块/子系统1 描述 Describe as fol
16、lows 按照以下格式描述: Identification 标识: Type 类型: Purpose 目的: Functions 功能列表: Requirement IDs to implement 要实现的需求ID: Submodules: 子模块:If this module will be further decomposed into submodules, list all submodules here. 如果本模块还要继续划分,列出下属子模块 2 Module/Subsystem 2 Description 模块/子系统2 描述 2.2.1.2 Concurrent Proces
17、s Decomposition 并发进程处理分解 This section describes concurrent processes in the system.本节描述系统中的并发进程。 In case of external entities, Subordinates attribute need not be described. 对于外部实体,从 属属性不必描述。1 Process 1 Description 进程1 描述 Describe as follows 按照以下格式描述: Identification 标识: Type 类型: Purpose目的: Functions
18、功能列表: This part describes the functions to be performed in the process. If the function has been described in module decomposition before, description should be made on what functions of the modules are implemented in this process. 描述本进程中要完成的功能,如功能已经在前面的模块分解中有描述,则重点描述本进程完 成了哪些模块的哪些功能。 2 Process 2 De
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