3.3 Utilizing Account-Set
Because the information dispatching by WWW page is of the form of "others access here", it is possible to classify learners minutely by using the authentication-setting of WWW page.
That is, for each learning class a login ID/password is set, and it is announced to learners. The identification of the learner is done by e-mailing to her/him.
In this way, kinds of off-site (asynchronous) education are realized. At-home learning, on-the-job (recurrent) training, lifelong learning, etc.