The Analytical Tools Interface for Landscape Assessments (ATtILA) is a computer program (an ArcView software extension) that allows users to calculate many common landscape metrics using a geographic information system (GIS).
Four metric groups are currently included in ATtILA:
- landscape characteristics,
 - riparian characteristics,
 - human stresses and
 - physical characteristics.
 
ATtILA is written in Avenue, ArcView's programming language, and is designed to accommodate spatial data from a variety of sources.