failure

I’ve read very interesting text about 3D movie projectors used by cinemas and how bad security design led to worse end-user (viewer) experience. You can find full text here. But I want to write about something I’ve recalled after reading this text. Few years ago I was working at call center for major Polish telecom (TP SA). I was help-desk for ADSL service called Neostrada. We were divided into two groups: