laz readers

modeling tools Popular include Rational Rose, Microsoft Visio, enterprise impact ect, and visual UML. The current UML modeling tool I use is enterprise architect 8.0. This is recommended for ease of use. V. UML diagram(Important) 1. use case diagram) Use Case divisor is a model map of system functions observed by external users called actors.List use cases and participants in the systemShow which participant participates in the execution of which use caseCore conceptsUse Case

of an operating system (hereinafter referred to as the "new version") has the following major changes: 1.Change the name of the example operating systemOrange's 2.Change the title 《Orange's: Implementation of an operating system 3.Added relatedIPC,FS,MmAnd other content 4.Change the default development platformGNU/Linux, While balancingWindows 5.The typographical tool has been changed, and technical means have been used to increase the readability of the book, such as the use of code row number

relationships, but can process many-to-many relationships. [Example 3]: In the "library information system", "books" are an entity, and "readers" are also an entity. The relationship between the two entities is a typical many-to-many relationship: A book can be borrowed by multiple readers at different times, and one reader can borrow multiple books. To this end, you need to add a third entity between the

install a Debian GNU/Linux system on the standard hard drive of ide2. Of course, if readers do not have Debian, they can also install the Red Hat system. After installing the work system, we must first cut down some work and delete unnecessary services and X Windows. The purpose of this operation is to increase the system startup speed, because in our subsequent work, we must constantly restart the machine, so the startup speed is critical to our wor

Introduction to netfilter and Linux Firewall The firewall technology of Linux has gone through several generations and has evolved step by step. At the beginning, ipfwadm was transplanted from FreeBSD's kernel code at the early stage of Linux kernel development. Later I went through ipchains and developed the netfilter architecture through Paul Russell in the Development of Linux kernel 2.3 series. The user space's firewall management tool is also developed as iptables. The combination of Netfil

address bar of the browser) or directly enter an IP address to access our website. In this series of events, the server software plays an important role. If the server software cannot work normally, users on the Internet are basically unable to access your website through a browser. Well, the smart readers must have guessed the content to be discussed and learned in this round. By the way, we will discuss the content of this round: Server Software je

]: In the "library information system", "books" are an entity, and "readers" are also an entity. The relationship between the two entities is a typical many-to-many relationship: A book can be borrowed by multiple readers at different times, and one reader can borrow multiple books. To this end, you need to add a third entity between the two. This entity is named "borrow and return". Its attribute is: Borro

I have read many articles on similar topics before writing this article, for example, from the business weblogs perspective, "10 strategic steps for making a personal blog a successful brand", a somewhat vulgar "increase your blog access volume", and the previous Yee's blog how to increase the number of blog readers, therefore, it is especially difficult to design the full text. I am afraid that I will fall into the routines of these articles and cann

The current deployment of the linux.net environment is a variety of ways, both the traditional way of compiling the source code, and a wide range of one-click installation scripts, as well as green package installation, and with the official mono new station on-line, but also increased the use of RPM package deployment. What should we do for a beginner who is a linux.net? Below, this article will compare the advantages and disadvantages of these kinds of installation methods, so as to help

impact on online journalism, and many veteran companies in the industry are concerned about Digg's success. Interview: Jay Adelson,digg.com's CEO and co-founder, Mike Maser, vice president of Digg.com Market, and two other reputable news sites who were reluctant to disclose their identities. Success factors use transparency to attract the providers of news materials When Digg is on the line, it's a priority to attract core users who can take the time to submit news footage to Digg. Today, attra

Internet is to enable us to receive information anytime and anywhere in the world, in a simple way that allows us to quickly read content from computers, PDAs, and even mobile phones. At the same time, the Internet has gathered a large number of readers, which makes it easy for people to get content on this path, wherever they are. But the traditional publishing industry still has a wealth of information, whether we are involved in each of the indust

because they don't use the Internet. • Since my site began, my grandmother has been watching, so I always regard them as a part of my important audience. It made me focus on what I wanted to share with them and cut down on the mess. I want to make the site acceptable to a wide range of people. • One of my rules is "do not delete any diary." So before I write anything, I have to think about it and make sure I don't put anything I regret in the future. For this reason I do not recommend "Drink to

, such as dynamic menu settings, mouse splitting interface, and Tree View display, as well as analysis of some advanced applications, such as 3D animation programs, TTS voice engines, and thin customer programs. By reading this book, you can understand and master common usage methods and advanced application skills in Delphi 6 control application development. Practicality is the biggest characteristic of this book. Most of the examples in this book have powerful functions, novel effects, and str

Many readers have never used or heard of exception handling in C language before, and the impression is that C ++ or Java is only available. How can C language handle exceptions? Of course, it is estimated that at the University, for example, the general study exam, the teacher will not mention the C language Exception Handling, so what is exception handling? How can I handle exceptions in C? So today we will explain a typical method for implementing

OO system analyst path-case analysis series (3)-Business modeling stakeholder 1 Starting from this article, I will use a virtual instance to explain how to obtain the use case, and how to determine whether the use case acquisition is complete and whether the granularity is appropriate. In fact, when doing this, we are in the first stage of requirement analysis, namely the business modeling stage. With the help of this example, I will also elaborate on what business modeling should do and how it

I just published some recommended books. Everyone is actively responding to Yu xingwei. I would like to recommend some for your reference only. This is a downloadable pdf format. I hope everyone will like it. Download several classic cloud computing books: virtualization and cloud computing, approaching Cloud computing, and cloud computing: Technology and practice, analysis of core cloud computing technologiesVirtualization and cloud computing Edit recommendations As the world's first system, i

previous chapter, it will never rely on the concepts described in the following chapters. In some cases, we will also reference the content to be discussed later in order to make a complete description. For example, "we will go to chapter X to explain it carefully." No such reference is necessary, if it does not exist, you just need to continue learning. -Try to introduce every knowledge point until it is used. Introducing a knowledge point too early, and having finished speaking it, the reader

of Freescale microcontroller. The book consists of three chapters and 24 chapters: The first part is the basic knowledge. It briefly introduces the hardware structure and working principle, command system, C Language Development basics and common development tools of Freescale single chip microcomputer, and guides readers to familiarize themselves with the hardware features of Freescale single chip microcomputer, get started with programming. The sec

developing fast, and it cannot catch up with it. The most important thing is to practice internal skills and stay the same. Visual c ++ can be described as the "Shaolin stunt" in development tools. It is the best technique to cultivate internal skills. Even if it cannot be used in future work, it will benefit a lot from it. I hope that the readers will continue to read this book carefully. Features of this book It is undeniable that visual C ++ is in

products, but it will bring greater benefits. Reader's dislike A blog author told meDarrenOne day, she added a banner advertisement to her blog, which aroused a strong reaction from readers. She was so angry with her readers that she had taken this path.To be filled with indignation. For some blogs, the reader group does not have a strong sense of belonging. However, some blog