Documentation

DrOJ Grader is a program for automatic grading and reporting of exam submissions. The program supports creating exams, registering candidates and scores, automatic grading, report export, and language customization (Norwegian/English).

Core Features

Exam Model:

• Represents exams with name, subproblems, weighting, grade thresholds, candidate scores, and answer options.
• Supports dynamic creation of subproblems (e.g., 1a, 1b, 2a …).
• Handles standard weighting, grade thresholds, and answer templates (localized).

DRG File Format:

• Reads, validates, and saves exam files in .drg format.
• Ensures data integrity and compatibility.

Report Generation:

• Creates individual reports for each candidate with scores, explanations, and grade descriptions.
• Can export all reports together.

Answer Options:

• Handles answer options for each subproblem (with key, name, description, and score).
• Supports editing and viewing in a table.

Grading:

• Automatic calculation of grades based on weighting and thresholds.
• Shows average and grade for each candidate.

Statistics and Visualization:

• Shows average score per subproblem and overall average grade.
• Supports grade distribution as a bar chart.

Language Support:

• Norwegian and English user interface and reports.
• All texts and descriptions are localized.

Typical Workflow

1. Create a new exam and specify subproblems.
2. Register candidates and scores.
3. Edit answer options and weighting as needed.
4. The program calculates grades automatically.
5. Export reports and grades.

File Formats

• .drg: Exam data (custom format)
• .csv, .xlsx: Import/export of grades and reports

Language and Grade Descriptions

All reports and grade descriptions are available in Norwegian and English, and can be customized in settings.