在贸易项目中使用开源gnu的模块要注意什么
在商业项目中使用开源gnu的模块要注意什么?
最近在帮一个公司弄个网站,对方提出要加上调查问卷模块,而且问卷形式还很复杂。
我看了下开源系统LimeSurvey刚好能满足需求,但是在界面跟流程上可能要改一点点。
那我把这个系统加到我网站上以后,可以把里面的链接进行修改吧?比如连接向LimeSurvey官网的那些链接。
gpl 是说使用以后整个网站就要开源吗?如果开源的话源码要放哪里?
------解决方案--------------------
在仅仅使用的情况下(如果你或该公司不把你改动后的代码作为产品再发布及销售等),
你不需要把你的代码放到什么地方...
链接也当然可以改掉.
------解决方案--------------------
在自由软件所使用的各种许可证之中,最为人们注意的也许是通用性公开许可证(General Public License,简称GPL)。
GPL同其它的自由软件许可证一样,许可社会公众享有:运行、复制软件的自由,发行传播软件的自由,获得软件源码的自由,改进软件并将自己作出的改进版本向社会发行传播的自由。
GPL还规定:只要这种修改文本在整体上或者其某个部分来源于遵循GPL的程序,该修改文本的 整体就必须按照GPL流通,不仅该修改文本的源码必须向社会公开,而且对于这种修改文本的流通不准许附加修改者自己作出的限制。因此,一项遵循GPL流通 的程序不能同非自由的软件合并。GPL所表达的这种流通规则称为copyleft,表示与copyright(版权)的概念“相左”。
GPL协议最主要的几个原则:
1、确保软件自始至终都以开放源代码形式发布,保护开发成果不被窃取用作商业发售。任何一套软 件,只要其中使用了受 GPL 协议保护的第三方软件的源程序,并向非开发人员发布时,软件本身也就自动成为受 GPL 保护并且约束的实体。也就是说,此时它必须开放源代码。
2、GPL 大致就是一个左侧版权(Copyleft,或译为“反版权”、“版权属左”、“版权所无”、“版责”等)的体现。你可以去掉所有原作的版权 信息,只要你保持开源,并且随源代码、二进制版附上 GPL 的许可证就行,让后人可以很明确地得知此软件的授权信息。GPL 精髓就是,只要使软件在完整开源 的情况下,尽可能使使用者得到自由发挥的空间,使软件得到更快更好的发展。
3、无论软件以何种形式发布,都必须同时附上源代码。例如在 Web 上提供下载,就必须在二进制版本(如果有的话)下载的同一个页面,清楚地提供源代码下载的链接。如果以光盘形式发布,就必须同时附上源文件的光盘。
4、开发或维护遵循 GPL 协议开发的软件的公司或个人,可以对使用者收取一定的服务费用。但还是一句老话――必须无偿提供软件的完整源代码,不得将源代码与服务做捆绑或任何变相捆绑销售。
我总结了一下,就是开源+可收服务费!

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