Chapter 6. Data sources

Data sources are of course more important that the tools you can use. And specially the quality of those data.

We can classify two big types of data here :

• Environment data

  Data which dont change often like airport position (even if I have see airport jumps in data sometimes ;-). It's called also static or semi-static data.

• Dynamic data

  Data which change very often like flight position or traffic load in a controlled sector.

Usually, the second type is computed with the help of the first one, so it's very important to take care of the accuracy of the environment data : right geographic location (lat,long), up-to-date semi-static data according to an activity (current capacity of an airport), or even new performance data for a new aircraft.