The first performance indicator is simply a document detailing the SLA or service level definition. The primary goals of the service level definition should be availability and performance because these are the primary user requirements.
Temperature decreases with elevation. During summer, temperature is strongly controlled by elevation -- cold at the higher reaches of the Alaska and Brooks Ranges, and warmer in the lowlands. How does elevation affect climate? As elevation _________, the average annual temperature __________.
Altitude is height above the ground level. Elevation is your height about sea level. (0 ft) You can have distance to from the Earth to the Sun. But there's no such thing as an altitude of the sun because the Sun is out there, with nothing to compare it to. Like altitude, is height above ground.