Service delivery requirements in most of the levels, up to 4 points in a constant high level, up to 3 points in a constant level, up 2 points, to supply services in constant level, up 1 points .
needs a level of service, the most score 4 needs to offer more value to score 3 needs a level of service, the score at least 2 needs a minimum level of service, value 1 points