-addusr template: ster?clnt=<name|pass>&com=addusr&usr=<usr>&<str_1>=<deg_1>&<str_2>=... Order of query params is not important. User name must not be empty string. descript: assigns stereotypes to a user with an associated degree. Degree is numeric (double), and expresses relevence. For the 'degree' parameters in query string that cannot be converted to numeric, NULLs will be inserted in DB. The stereotypes must already exist in the DB. If a stereotype in the query string does not already exists in the DB, or if a (usr, str) pair already exists, then code 401 (request error) will be returned. If the error code 401 is returned then no records have been inserted in the DB. example : ster?clnt=name|pass&com=addusr&usr=kostas&visitor=0.78&expert=0.9 ster?clnt=name|pass&com=addusr&usr=0.34&visitor=&expert=0.5 returns : 200 OK, 401 (fail, request error), 501 (fail, server error) 200 OK : no response body exists.