产品变化 meaning in Chinese

model change

Testing performance standards : this process would include establishing acceptable testing standards for the product variations and validation of the product performance standards written into a formal documented standard
性能测试标准：这个过程包括针对产品变化建立可接受的测试标准并把有效的产品性能测试标准写成正式的标准文档。
I am writing you in the hopes that this dialogue will fuel change within the ibm websphere application server product concerning a problem that we encountered with the current implementation of ejb references
我向您写这些文字的目的是希望这个对话能解决在ibm websphere application server产品变化中关于我们目前ejb reference实现所遇到的问题。