From the definition of E-assessment from Wikipedia, we can see the advantages of deploying an e-testing system are obvious: lower long-term cost, instant feedback, great flexibility, improved reliability and enhanced question styles. We, especially teachers, cannot refuse so many advantages here over traditional assessment. With some authoring tools, we may create high quality assessment items with IMS Question and Test Interoperability specification to evaluate students' learning progress. But here is NOT the end of E-assessment. As the assessing part of eLearning, the tests creation and participation is just the method. We really need the test results of the e-assessment to evaluate how students learnt.
This is an interesting topic as I posted "The Way Scoring Test in eLearning" days ago. Actually we believe that teachers can collect all test results manually via E-Mail. We know, it's complicated and not intuitive with enormous results data to analyze comprehensively. As I claimed in a previous training article "Online Training Needs Assessments", those educational technologies help us implement the accessing part. I completely agree that we should use extensive statistics and analysis tools, which contains valuable information based on trends analysis, and the details you can look up. Back to the beginning, these information we got really helps us evaluate the performance of eLearning, whatever how great your online courses and online assessments are.
More information about Quiz Management System for eLearning performance: http://www.sameshow.com/quiz-creator/quiz-online-reporting-system.html