AI open-answer grading: instant feedback instead of waiting
A course has 150 participants, each writing a 500-word essay. The instructor marks them manually in 75 hours — or sets a deadline two weeks out. AI grades them in 15 minutes and every student receives feedback immediately.
How AI grades
Defining the rubric
Task: Analyse an incident from a GDPR breach case study.
Identify the cause, impact and propose corrective measures.
(min. 400 words)
Rubric (defined by instructor):
1. Identification of the incident cause (0–3 points)
2. Analysis of impact on data subjects (0–3 points)
3. Legal classification of the breach (0–2 points)
4. Specific corrective measures (0–2 points)
Bonuses: citing legislation, real-world examples (+1)
Format and structure: 0–1 point
Max: 12 points
AI grading of an answer
Answer: Jana Nováková
Word count: 612
AI grading:
1. Cause identification: 2/3 ✅
Comment: Identified the technical failure but did not mention
the organisational failure (absence of a DPO).
2. Impact on data subjects: 3/3 ✅
Comment: Excellent — concrete impact on both employees and
customers, with an estimate of scale.
3. Legal classification: 1/2 ⚠️
Comment: Art. 33 correctly cited, but no reference to Art. 34.
4. Corrective measures: 2/2 ✅
Comment: Concrete and actionable steps.
Total score: 8/12 (67 %) → Grade: B
Personalised feedback sent to Jana [delivered immediately]
Instructor only reviews borderline cases
AI flags answers within ±1 point of the pass/fail boundary for manual instructor review. Everything else is done.