simple pcb design software

names, such as data results, these names are tags, in fact, the address is passed.(6) Data coupling: Only simple data item parameters are passed between the calling module and the called module. Equivalent to a value pass in a high-level language.(7) Non-direct coupling: There is no direct relationship between the two modules, the connection between them is completely through the Master module control and call to achieve. The weakest coupling and the

coupling.Coupling is the degree of association, perception, and dependency between a module (class) and other modules (classes). It is an indicator to measure code independence and is also a software engineering design. And a standard for coding quality evaluation. Coupling strength depends on the following factors: (1) calls from one module to another; (2) Data Volume transmitted by one module to another

the wireless router in my home, familiar !), Prompt to enter the network key. Input.A few seconds later, the MacBook Air desktop appeared. It can be used normally. Next I will see the browser safari at the bottom. Open it and enter a URL. Successful!Good! For a person like me who lives on the internet, having access to the Internet means I can work normally.In this way, I have not encountered any obstacles. It took me tens of seconds to use the product for the first time and scored 10 points.Wh

Java design pattern (1) simple factory pattern is not simpleSimple factory Use Cases There is an abstract product-Car, and there are a variety of specific sub-products, such as BenzCar, BMWCar, and LandRoverCar. The class diagram is as follows: As a driver, if you want to drive one of them, such as BenzCar, the most direct way is to directly create the BenzCar instance and execute its drive method, as follo

Updating the daily line is a data import feature that we often encounter.The explanatory text of this feature, which I wrote:Users in the first use of the system, the need to install the Shanghai and Shenzhen from the opening to the current year all the historical data, which can be obtained from a securities market software, is to follow a certain format of binary files. Thereafter, every day after the end of the market, users must update the day of

JAVA ME This technology has been there for many years now, and this time, we have mixed opinions about the technology. We will not discuss these for the time being, I take my project experience today, how to design a good Java ME mobile phone software. This article is not a purely technical article, as long as the project's friends are able to see that the view is only representative of their own personal v

proposed by Ian Holland for a project called Demeter at Northeastern University in the fall of 1987, therefore, it is called the Demeter law [lieb89] [lieb86]. this rule is actually a guiding design principle for many well-known systems, such as the Mars Landing software system and the software system of Jupiter's Europa satellite orbital spacecraft.There is no

units which are closely related to the unit.That is, if two classes do not have to communicate directly with each other, then these two classes should not have a direct interaction, if one of the classes needs to invoke a method of another class, you can forward the call through a third party.7. Single Responsibility principle (simple responsibility pinciple SRP)In the case of a class, there should be only one cause for it to change, and if you can t

once it fails to work normally. At the same time, it is difficult to expand the system. Once a new product is added, the factory logic has to be modified, which may cause the factory logic to be too complex. In addition, the simple factory mode usually uses the static factory method, which makes it impossible to inherit from sub-classes, and the factory role cannot form a hierarchy based on inheritance. References:Min Hong, Java and mode, e-Industr

Few IT companies in China list document design as a part of software design. Many of them may be due to development costs. To do document design, more manpower and time are required, that is to say, more cost is required. I was also confused about this. Domestic IT companies are very competitive, and time and cost are

No. 01 Session: Holistic Course Introduction and miscellaneous introductionNo. 02 Lesson: Common Concepts and methods of software function designThe No. 03 lesson: Some Thoughts on software designNo. 04 Lesson: First week business and corresponding model: Integrated application simple Factory mode, proxy mode, intermediary modeNo. 05 Lesson: The basic outline cod

names, such as data results, these names are tags, in fact, the address is passed.(6) Data coupling: Only simple data item parameters are passed between the calling module and the called module. Equivalent to a value pass in a high-level language.(7) Non-direct coupling: There is no direct relationship between the two modules, the connection between them is completely through the Master module control and call to achieve. The weakest coupling and the

main program body code of the main package requires a long Compilation Time, or the SCP and notice packages are provided in the form of a shared library or DLL, the preceding modifications are necessary. Otherwise, if the program size is small and the compilation time required by the main code of the program can be ignored, the modifications are not required. After all, the modified program structure adds an abstract layer, which increases complexity.

around concurrency can cause the system to become essentially serial, limiting the ability to scale. Concurrent programming is not difficult, and there are some simple principles that can help when building a scalable system.If you do need to hold locks (such as local objects, database objects, etc.), try to hold them as short as possible.Try to reduce contention for shared resources and, as far as possible, compete to avoid critical processing paths

Agent switcher. He can save you a lot of time and allow you to quickly switch between different phone systems. Another factor in the communication between systems is design. Many mobile Web experience designers will make mistakes in the design elements of the mobile phone system interface. For example, a designer using an Apple system might use an Apple-style button. Although it can be done in the applica

1 Overview 1.1 System Overview A brief description of what the system is to accomplish, the target users, and the operating environment of the system. This part mainly comes from the beginning of the requirement manual. 1.2 software design goals This part discusses the design objectives of the entire system, and clearly describes which functions are determined b

During software design, the degree of detail of analysis and design, as well as design deficiencies and transitional design problems are usually encountered. Generally, the purpose of design is to grasp the degree of

Mail (email): [Email protected]-------------------eplan.p8.fluid.v2.4.4.8366 win32_64 1DVD hydraulic system design SoftwareEPLAN Fluid Engineering tools for automatic configuration and generation of loop documentation in hydraulic, pneumatic, cooling and lubrication. The Fluid power engineering is connected with other engineering disciplines through Eplan platform. As a result, multiple engineering tasks can be executed in parallel and can speed up t

First, a software should be "Polite" because courtesy is a common behavioral feature of humans.If a software can only provide a small amount of information and behavior is obscure, it often forces the user to find some common functions and impose faults and responsibilities in the design process on any user, the user will not like the

Design everyone knows that fireworks is a multi-functional application that creates, edits, and optimizes web images, but it can be used as a powerful image-processing software in addition to making Web pages. The two seal effects in Figure 3 and Figure 4 are designed using it, and the method is simple, with a square seal as an example to introduce its production