Software quality is a generalised statement difficult to agree or disagree with until a precise definition of the concept of "Software Quality" is reached in terms of measurable quantities. Unfortunately, for the software technology the basic question of: - what to measure; - how to measure; - when to measure; - how to deal with the data obtained are still unanswered and are also closely dependant on the field of application. In the past twenty years or more there have been a number of conferences and debates focusing on the concept of Software Quality, which produced no real industrial...