# What Makes a UI Simple? Difficulty and Complexity in Tasks Engaging Visual-Spatial Working Memory

> Research article (Future Internet, 2021) · cited 10× · AI/ML

**Wikidata**: [openalex:W3122964075](https://www.wikidata.org/wiki/openalex:W3122964075)  
**Source**: https://4ort.xyz/entity/what-makes-a-ui-simple-difficulty-and-complexity-in-tasks-engaging-visual-spatial-working-memory