Prompt Playground is a feature integrated to an AI Grading Assistant, aiming to enabling graders to preview, evaluate, and refine how the AI grades with provided grading instructions before applying them
Context
Master Thesis
2025 Nov -2026 May
Role
UX Research, Concept Design, Implementation, Between Subject Evaluation
Collaboration
Centre of Expertise in Learning and Teaching, University of Twente
Tool
Figma, Lovable, Claude Next.js, Gemini API, AI-assisted development

Impact
Shift how human grades with AI, shift from rewriting to refinement
Increased the perceived AI-generated feedback quality significantly
