For the purposes of this Regulation, the following definitions apply:
(1) ‘AI system’ means a machine-based system that is designed to operate with varying levels of autonomy and that may exhibit adaptiveness after deployment, and that, for explicit or implicit objectives, infers, from the input it receives, how to generate outputs such as predictions, content, recommendations, or decisions that can influence physical or virtual environments; Related: Recital 12
https://artificialintelligenceact.eu/article/3/ https://artificialintelligenceact.eu/recital/12/ So, it seems like yes, software, if it is non-deterministic enough would qualify. My impression is that software that simply takes "if your income is below this threshold, we deny you a credit card." Would be fine, but somewhere along the line when your decision tree grows large enough, it probably changes.