A dilemma for qualitative research is to achieve adequate data saturation and reduce the time required collection. The aim of article provide an answer question: what extent should in-depth interview be moderated in order ensure level analysis several topics? methods include a literature author’s dissertation reports. may help improve collection high-quality during interviews contribute develop...

We present Active Spam Killer (ASK), a program that attempts to validate unknown senders before allowing delivery of their message. Validation occurs by means of a challenge reply sent to senders who are not yet known to the system. Messages are kept in a queue pending confirmation until the sender replies to the challenge. Further messages coming from confirmed senders are delivered immediatel...