3 Design software design can be divided into preliminary design and detailed design of the two phases. In fact the main task of the software design is broken down into modules of the software means that data and programs to achieve a functional description of the executable program unit. Can be a function, procedure, subroutine, separate program and data with the program described in paragraph can also be a combination, can be dismantled and replaceable functional units. Module, then the module design. Outline design is the structural design, its main goal is to give the module structure of the software, represented by software structure. The primary task is to program the detailed design process design modules, algorithms and data structures, software development company in Shenyang, the secondary task is to design a database, commonly used method is still structured programming methods. 4 encoding software coding refers to the software design into a computer program may be acceptable, that is written as "source list" to a programming language representation. Fully understand the software development languages, tools, features and programming style, and a choice of development tools to help ensure the development of quality software products. Current software development except in special occasions Android mobile software development, has been rarely used in the 1980s of high-level language, and replace it with an object-oriented development language. And object-oriented programming language and development environment mostly into one, greatly improving the speed of development. 6 Maintenance refers to completed research (analysis, design, coding and testing) work and after delivery, software engineering software products for some of the activities carried out by the software. That is according to the situation of software running on the software appropriately modified to adapt to the new requirements, and correct errors found in operation. Writing software problem reports, software modifications report. A medium-sized software development stage if it takes time for one to two years, it is put to use in the future, their time may be running or working for five years to ten years. Then its maintenance phase is run during the past five years to ten years. During this time, people almost need to address the various issues encountered in the development stage, but also address some of the issues specific to the maintenance work itself. Software maintenance work to do, not only to remove obstacles to windows7 software development, so that the software can work, but also can make it extended functionality, improve performance, in order to bring significant economic benefits. Unfortunately yes, right software maintenance work is often far less emphasis on the importance of software development work. In fact, compared to software development work, effort and cost of software maintenance is much larger. In the actual development process, software development is not carried out from the first step to the last step, but at any stage before entering the next phase generally have one or more steps of backtracking. During the test, the problem may require design changes, users may need to make some modifications needs manual. java software development _ _ abundance of software development and IT centers provided by the Shenyang City, HSBC and IT center. Shenyang Feng and Information Technology Center (www.4000010001.com) strong, credible, in Shenyang, Liaoning e-commerce industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement and innovative ideas will lead HSBC IT center and you work into the brilliant, for a better future!