There have long been quality measures such as the drilling difficultyindex and the wellbore quality scorecard.
先前早就有表征井身质量的方法,如钻进难度系数和井身质量记分卡。
2
The idea was to get an index number to help estimate the difficulty of implementing processing tasks (such as creating an XSLT transform) for a vocabulary and the typical USES for the vocabulary.
Most of the issues revolved around difficulty in bookmarking and refreshing pages, and the inability of search engines — which don't support frames — to index the appropriate content.