How Evalezy checks a handwritten answer sheet.

Evalezy's part · 1–8 minutes a copy

What happens to each copy

1. 1

   Read the page layout

   Each page is straightened, cleaned and contrast-boosted, and the position of every written line is found. Printed-text OCR alone cannot read handwriting, so it is only used for where lines are, never for what they say.

2. 2

   Read the handwriting

   A vision model reads every line as written, three pages at a time, row by row. It is told never to invent text; anything it cannot read is marked as unreliable.

3. 3

   Check the copy is readable

   If most pages are too blurred or blank to read, the check stops here with a clear reason. No marks are guessed and nothing is charged.

4. 4

   Second read for maths

   Up to four maths lines the reader was unsure of are sent to a dedicated equation reader and replaced with its reading.

5. 5

   Find each answer

   On copies of four pages or more, Evalezy works out which pages hold which answer, by content, so answers written out of order are still found. If a question then looks unattempted, the whole copy is searched again before it gets zero.

6. 6

   Mark each question

   Each answer is marked against its criteria, in half-mark steps, with the student's own words quoted. Low-confidence marks are re-asked. Marks appear on your screen question by question.

7. 7

   Make the marks add up

   Marks are capped at the maximum, criteria scaled to match, and each question gets exactly one score and one clear note.

8. 8

   Write on the copy

   Ticks, crosses, corrections, notes and marks are drawn onto the student's pages in a handwriting-style red pen, with the total circled on page one.

Several copies are checked at once. The first results usually appear within about 10 minutes of uploading, and 100 copies take roughly 2 to 3 hours. Copies up to 40 pages are read in full.