olemus
rakenduse tööks vajalik mälu- ja/või kettamaht vms

Wiktionary:
3. (computing) the amount of hard drive space required for a program

ülevaateid
https://stackoverflow.com/questions/16298571/what-is-application-footprint-and-how-to-calculate-it

https://en.wikipedia.org/wiki/Application_footprint