系统开发周期 meaning in English

sdlc
system development cycle

The research in this paper provides some valuable conclusions and simulation approach for the design and experiment of the gun system , which can effectively reduce the manufacturing periods and cost of the system
通过本文的研究，为航炮系统的设计和实验提供了比较重要的参考数据，从而有效地缩短航炮系统开发周期，节省研制经费。
In this thesis , the author at first analyses the component gis and the tide of realizing webgis as a component system , then discusses the difficulties those programmers meet when using arcxml directly . after clarifying the advantages of shielding arcxml and packing gis general functions , the thesis makes the decision of developing arcims general components to attain the aim of simplifying the developing process of arcims application system and shortening developing period
为了简化arcims应用系统的开发过程，缩短系统开发周期，论文深入讨论了arcxml为二次开发人员开发gis功能带来的复杂度，指出利用构件技术屏蔽arcxml复杂性、封装地图通用功能是简化arcims地图功能开发的有效手段，提出了开发arcims高级通用构件的方案。