Student's polls for teaching quality evaluation as an electronic voting system

The problems of electronic voting (e-voting) systems are commonly discussed in case of general election. The main problems of e-voting are related with the system security and the user's anonymity. System security is the problem of cryptographic security, user's authorization, limited access and protection against frauds. The anonymity is another important issue, because a guarantee that the voters are anonymous is reflected in the reliability of casted votes. Authorization and anonymity seems to be contradictory but it possible to separate both procedures. The problems of polls for teaching quality evaluation are similar. The polls need to be available only for authorized students but they also need to be filled in anonymously. Three solutions of such a problem in remote voting system are discussed in the document.