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使用UML对系统进行建模
面向对象的软件工程,同传统的面向过程的软件工程相比,在需求的获取、系统分析、设计和实现方面都有着很大的区别。UML是OOA和...
使用UML对系统进行建模
面向对象的软件工程,同传统的面向过程的软件工程相比,在需求的获取、系统分析、设计和实现方面都有着很大的区别。UML是OOA和OOD的常用工具。使用UML来构建软件的面向对象的软件工程的过程,就是一个对系统进行不断精化的建模的过程。这些模型包括用例模型、分析模型、设计模型,然后,我们需要使用具体的计算机语言来建立系统的实现模型。
-The use of UML for system modeling object-oriented software engineering, with the traditional process-oriented software engineering compared to demand access to, systems analysis, design and implementation of aspects of great distinction. UML is commonly used OOA and OOD tools. Use UML to build a software object-oriented software engineering process, the system is a continuous refinement of the modeling process. These models include the use case model, analysis model, design model, and then, we need to use specific computer language to create a system model.
- 2022-02-15 12:37:07下载
- 积分:1
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To introduce the use of cgi scripts, I hope for your help
对cgi脚本运用的介绍,希望对你有所帮助-To introduce the use of cgi scripts, I hope for your help
- 2022-08-23 21:57:43下载
- 积分:1
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p2p聊天软件相关代码
资源描述这几个代码是基于p2p技术的,是对于私聊公聊的类的一些实例的声明,实现的是一个大体的框架,因为使用的是java语言,有很好的拓展性和跨平台性,希望大家能好好利用。
- 2022-03-20 19:44:34下载
- 积分:1
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非常好的UML书籍,没有UML基础也可看懂,有案例分析,有很好的参考价值,建议购买此书。...
非常好的UML书籍,没有UML基础也可看懂,有案例分析,有很好的参考价值,建议购买此书。-Very good UML books, there is no UML basis can also be read, there are case studies, has a very good reference value, it is recommended to buy the book.
- 2022-03-24 22:18:44下载
- 积分:1
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VC use memory
VC++中使用内存映射文件处理大文件,文件操作是应用程序最为基本的功能之一,Win32 API 和MFC 均提供有支持
文件处理的函数和类,常用的有Win32 API 的CreateFile()、WriteFile()、
ReadFile()和MFC 提供的CFile 类等-VC use memory-mapped file handling large files, file manipulation application is the most basic function, MFC and Win32 API is available to support the document processing functions and classes, used the Win32 API CreateFile (), WriteFile (), ReadFile () and the MFC CFile type
- 2022-07-04 12:37:50下载
- 积分:1
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设计模式小例,自己写的一些源码,请多指教
设计模式小例,自己写的一些源码,请多指教-example for pattern,
- 2022-07-09 07:40:25下载
- 积分:1
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这是一个享受crypter源…
it s a crypter source...enjoy
- 2023-08-19 02:05:04下载
- 积分:1
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directshow初级学习资料,ppt格式,作者陆其明,对初学者有用。...
directshow初级学习资料,ppt格式,作者陆其明,对初学者有用。-DirectShow primary learning materials, ppt format, the writer Lu Qi-Ming, useful for beginners.
- 2022-05-23 02:56:11下载
- 积分:1
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在一个基于RTOS优先级,优先级反转
In a preemptive priority based RTOS, priority inversion
problem is among the major sources of deadline
violations. Priority inheritance protocol is one of the
approaches to reduce priority inversion. Unfortunately,
RTOS like uC/OS can’t support priority inheritance
protocol since it does not allow kernel to have multiple
tasks at the same priority. Although it has different ways
to avoid priority inversion such as priority ceiling
protocol, developers still have some difficulties in
programming real time applications with it. In this paper,
we redesign the uC/OS kernel to provide the ability to
support round robin scheduling and implement priority
inheritance semaphore on the modified kernel. As result,
we port new kernel with priority inheritance semaphore to
evaluation board, and evaluate the execution time of each
of the kernel service as well as verify the operations of
our implementation.-In a preemptive priority based RTOS, priority inversionproble
- 2022-03-24 17:49:36下载
- 积分:1
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这是一本关于软件测试的经典书籍,出自具有二十多年实际项目经验的Ron Patton大师之手,对初学都有相当大的指导意义。...
这是一本关于软件测试的经典书籍,出自具有二十多年实际项目经验的Ron Patton大师之手,对初学都有相当大的指导意义。-This is a test of the software on the classic books, have 20 years from the actual project experience Ron Patton master hand novice pairs have considerable guidance.
- 2022-03-08 09:02:23下载
- 积分:1