Search Interface of CNKI
CNKI is the largest academic database in China. It’s similar to Academic Search Premier.
One guideline it successfully addresses:
Reduce short term memory load
It suggests the search action by placing grayed-out texts in the entry form.
Aside from viewing search history by clicking the bar on the left, if you click the circled icon beside the search terms, a new window will pop up to show you your latest search terms, like shown below:
One guideline it does not addresses:
If I misspell a word, CNKI gives me no clue to the correct spelling, which it should. If I get zero results, it also doesn’t give me any suggested steps.
I just think that this is an interesting feature of CNKI. The other option of the drop-down box is “fuzzy.” I believe it allows users to choose which side of the precision-recall trade off they want.