cat6 diagram

There is no valid owner when creating a database relationship diagram. After restoring the database backed up by SQL2000 to sql2005, the "database relationship diagram" prompt: the database does not have a valid owner, so you cannot install the database relationship diagram support object. To continue, first set the database owner to a valid login name using the

. "When" is the answer, that is, how the development work is scheduled; 4. "Who" means that some development (or maintenance) work is intended to be done by "who? "· 5. "How" means how certain requirements are met; 6. Why? The above is the relevant content of the soft work document. Let's take a look at the relationship between the UML diagram and the document below: First, the UML diagram does not corre

The meanings of the symbols of UML class diagramsClass diagram basic symbols can be broken down into dashed lines, arrows, solid lines, hollow right triangles, solid right triangles, hollow diamonds and solid diamonds. These basic graphs are combined to form the basic symbols of the class diagram. It is important to note that the order of these symbols represents the degree of coupling between classes and c

PLC Ladder diagram Programming exerciseTraffic light ControlIn a scenario like this, when the SW1 switch is turned on, the traffic light controller starts to work and the controller stops working when the SW1 is turned off.SW2 for control mode selector switch:When the SW2 is turned off, the green, yellow, and red lights turn on, the specific timing is: green light 100 seconds, flash 5 seconds (every second light off once), yellow light 5 seconds, red

Transferred from: http://blog.csdn.net/leixiaohua1020/article/details/44220151FFmpeg library function source code analysis article list:"Architecture Diagram"FFmpeg source code structure diagram-decodingFFmpeg source code structure Map-EncodingGeneralFFmpeg Source code Simple analysis: Av_register_all ()FFmpeg Source code Simple analysis: Avcodec_register_all ()FFmpeg Source code Simple analysis: allocation

Class diagram is the relationship between classes and classes, is used to deduce code design, later used to optimize the structure of the code, looking for design unreasonable. On-line interpretation of Class diagram and class diagram of the drawing, often expressed very obscure, or examples of rigid, difficult to concrete operation.Class diagrams generally appea

Network topology diagram drawing tool:VISIO: Network Diagram. But with a limited template (Graphics template Library), you can download Huawei, 3COM and Cisco templates from the Web. Cisco Networking Products (the most widely used), Siemon cabling products, and HP (COMPAQ) server products have their own free library downloads, which are updated as the product is upgraded.Edraw : Learn Cisco, drawing a netwo

ArticleDirectory (1) from the perspective of general users (2) From the operator's perspective (3) from the Administrator's perspective Drawing a use case diagram is the first step from the software requirement to the final implementation. Its correctness directly affects the user's satisfaction with the final product. In fact, we can also say that use cases are what the participants want the system to do. The use case

What is the minimum tree chart? I believe that if you will come to see this article, presumably should also have some knowledge of the minimum spanning tree, the minimum spanning tree is the least weight of a spanning tree of the non-graph. Our smallest tree diagram is to solve a graph of the minimum weight of a spanning trees, for the degree Niang, the minimum map is defined as: the minimum tree diagram, i

The new activi not found in the old version of the activitirestapplication provided in the introduction (at least I did not find), so directly from the SPRINGMVC for the Diagram Viewer to provide services, but also good to understand diagram How the viewer works.First, download the corresponding version in the http://www.activiti.org/ In the official ZIP file (available from www.activiti.org/download.html

A time series diagram is a diagram that shows interactions between objects. It shows dynamic collaboration between multiple objects by describing the chronological order in which the messages interact between objects.Time series diagrams are used to denote the order of behavior in a use case, and when a routine is performed, each message in the sequence diagram c

Original address: http://blog.csdn.net/zhuojiajin/article/details/8657853See the UML video, feel the UML content actually look very clear. When I started to paint, I found out that it was purely a teacher's job. Listen to understand or feel that you understand that it is just an illusion. For the UML diagram or understanding is not thorough enough, of course, now ask yourself to be thorough is also a dream. Although it is an illusion, trait also let m

1. Class: Using a three-layer rectangular box.The first layer displays the name of the class, and if it is an abstract class, it is displayed in italics.The second layer is the fields and properties.The third layer is the method of the class.Note that the preceding symbol, ' + ' means public, '-' denotes private, ' # ' represents protected.2. Interface: The use of two-layer rectangular box, and the difference between the class diagram is mainly the to