求翻译：软件作为独立产品，针对用户需求，采用自顶向下、逐步求精的方法，进行面向系统的软件设计与面向底层技术实现的代码开发与测试，让用户安装并拥有软件系统，这样的时代正在成为历史是什么意思？

Software as a standalone product for users' needs, using top-down, stepwise refinement method, system-oriented software design and underlying technology for the development and testing code, allowing users to install and has a software system, so era is history

Software as a stand-alone product, and respond to users' needs, from top to bottom, a step-by-step introduction for the best methods for system-oriented software design and oriented toward the bottom of the technology to achieve code development for the installation and testing, and enables the user

The software took the independent product, in view of the user demand, uses asks the fine method from the top, gradually, carries on face the system software design with face the first floor technology realization code development and the test, lets the user install and have the software system, suc

Software as stand-alone products against user requirements, surgeon and progressive refinement approach, for system software designs and underlying technology-oriented code development and testing lets users install and have software systems so that era fades into history

Software as a stand-alone product, for the needs of users, using top-down, the gradual refinement of methods, system-oriented software design and underlying code development and testing of technology-oriented, so that users have installed and software systems, such times are a thing of the past