---
title: "GM1 56. Functional system — ANNEX I — Part-DEFINITIONS, ATM/ANS · Avioverse"
description: "SOFTWARE The term ‘software’ is understood to be the computer programmes and corresponding configuration data, including non-developmental software, but…"
url: "https://avioverse.aero/regulations/easa/atm-ans/part-definitions/general/gm1-56-functional-system"
---

# GM1 56. Functional system

ANNEX I — Part-DEFINITIONS · Regulation (EU) 2017/373 · EAR revision 12 Mar 2025

GM Guidance material

## GM1 56. Functional system

SOFTWARE

The term ‘software’ is understood to be the computer programmes and corresponding configuration data, including non-developmental software, but excluding electronic items, namely application specific integrated circuits, programmable gate arrays or solid-state logic controllers.

In this text:

(a) the term ‘configuration data’ is understood to be the data that configures a generic software system to a particular instance of its use; and

(b) the term ‘non-developmental software’ is understood as a software not developed for the current contract.

GM — Regulation (EU) 2017/373 · ED Decision 2019/022/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

[All rules in General provisions](https://avioverse.aero/regulations/easa/atm-ans/part-definitions/general)

Consolidated from the EASA Easy Access Rules (revision 12 Mar 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.