久久6-波多野结衣av在线观看-a级在线观看-亚洲精品国产精品乱码不卡√香蕉-91免费小视频-久久网av-人妖粗暴刺激videos呻吟-久久中文字幕av-91人人干-日韩美女啪啪-欧美xxxx18国产-三级欧美韩日大片在线看-久久系列-日本成人片网站-五月婷激情-精品久久久久久亚洲-激情久久网站-光棍福利视频-国产又色又爽又黄-欧美极品视频在线观看

In the past, if you needed a functional test system you had to choose between a complete custom solution — typically integrated by a local system integrator — or a standard, off-the-shelf applicationcentered system, typically delivered by an instrument vendor. Building custom solutions often involved major engineering effort and big expenditures, and the systems were sometimes hard to support and difficult to adapt for testing new products. The standard, application-centered systems often lacked flexibility and frequently relied on proprietary standards or software.