Maintenance and Logistics are the most common ones and unfortunately they aren't alone. Gaps mean comparing a given system against other(s), which I personally don't find correct, unless the context(s) in which systems operate are taken into consideration. On one hand; on another hand, companies and organizations have never invested much money to improve the cultural skills of their personnel, thus making the paradigm of creating solutions for evolving realities quite unrealistic. At a personal level, we've created a team to study a different approach to the decades old problem of reliable systems registration: the idea seems to work but companies and organizations (or should I say "people"?) are afraid of the news. Which takes us back to cultural contexts and skills.