statistic survey
5.Based on the collection of the primary impact factors of the electronic resources evaluation indicators involved,an investigation on the importance and the acquirability of impact factors of the electronic resources evaluation is made through expert survey questionnaires from the 211 project university libraries,applied grey theory and method to information grey statistic and analysis to work out a set of comprehensive significant impact factors. An appropriate indicators system of the electronic resources evaluation is proposed upon the above-mentioned results.

