Digitize Your Exam
Evaluation. Instantly.
Replace paper-based answer sheet marking with a fast, accurate, and transparent online evaluation system — from upload to result, all in one platform.
Trusted by Leading Educational Institutions
Everything You Need for Seamless Digital Evaluation
From answer sheet upload to final result — one integrated platform.
On-Screen Evaluation
High-resolution answer sheet viewing with zoom, pan, and multi-page navigation.
Smart Marking Tools
Tick, cross, and freehand drawing annotations directly on answer sheets with full undo.
Question Grid Navigation
Jump to any question instantly. Auto-validates scores against maximum marks.
Multi-Role Dashboards
Dedicated dashboards for Evaluators, Moderators, Admins, and Students.
Quality Control & Moderation
Moderators verify evaluations, flag inconsistencies, and issue warnings.
OTP Authentication
Secure login via OTP delivered through SMS and email. Multi-channel verification for evaluators and students.
Face Recognition Proctoring
Real-time face verification ensures the assigned evaluator is the one marking. Continuous identity checks during evaluation sessions.
Real-Time Progress Tracking
Track evaluation progress by subject, evaluator, and status in real-time.
Instant Result Processing
Secure, instant result processing with 9-point error validation. Multi-level processing by department and subject.
Re-Evaluation Support
Full re-evaluation workflow with automatic subject reassignment, score discrepancy detection, and result reprocessing.
Chief Examiner & Moderator Support
Dedicated workflows for chief examiners and moderators — pool-based assignment, performance monitoring, and moderator switching.
Evaluation Reminders
Automated reminders via SMS and email to evaluators for pending evaluations, deadlines, and credential updates.
Audit Logging
Full compliance-ready audit trail. Every action logged with timestamp and user.
Multi-Language UI
Supports English, Hindi, and Tamil out of the box. Easily extensible.
Dark Mode
Full dark/light theme support for comfortable evaluation during long sessions.
Keyboard Shortcuts
Power-user shortcuts for undo, navigation, and 2x evaluation speed.
Live Chat Support
Built-in real-time chat for evaluator support during exam windows.
Student Result View
Students view evaluated answer sheets with question-wise score breakdowns.
From Paper to Digital in 4 Simple Steps
A streamlined workflow designed for speed and accuracy.
Scan & Upload Booklets
Place open booklets under a camera — MapleScan auto-detects the spine, splits pages, validates QR/barcodes, and uploads in real-time.
Assign to Evaluators
Admins assign answer books to qualified evaluators by subject. Auto-distribution available.
Evaluate On-Screen
Evaluators mark answers with annotation tools, enter scores per question, and submit — all in the browser.
Review & Publish
Moderators verify evaluations for quality. Once approved, results are published to students.
Built for Every Stakeholder
Purpose-built interfaces for every role in the evaluation lifecycle.
- Evaluate 60-80% faster than paper
- Annotate directly on answer sheets with drawing tools
- Clear question grid with auto-score validation
- Track your progress and performance metrics
- Keyboard shortcuts for power-user speed
Intuitive marking interface with split-panel view
Enterprise-Grade Security
Built with security at every layer — from authentication to audit logging, your data is protected by industry best practices.
OTP via SMS & Email
Multi-channel OTP verification for secure login — delivered through SMS and email simultaneously.
Face Recognition Proctoring
Continuous face verification ensures the assigned evaluator is actively marking. Identity checks throughout the session.
JWT Authentication
Stateless, secure session management with encrypted tokens.
Role-Based Access Control
11 specialized roles with granular route and API authorization.
Full Audit Logging
Every action logged — who did what, when, and any changes made.
Bcrypt Password Hashing
Industry-standard password hashing with salt rounds.
Redis-Backed Caching
High-performance caching with database connection pooling.
Compliance Ready
HTTPS enforced, data encryption, and regulatory audit trails.
Numbers That Speak
Proven at scale across multiple exam cycles.
High-Speed Booklet Scanning
Purpose-built scanning stations that capture, validate, and upload exam booklets — no manual alignment, no missed pages.
Spine-Based Splitting
Auto-detects the spine of an open booklet, splits left and right pages, and corrects perspective distortion — just place the booklet under the camera.
Dual QR Detection
First page simultaneously detects both batch and booklet QR codes. Auto-loads the batch manifest and tracks progress from a single capture.
Barcode Validation
Pages 3–32 carry Code128 barcodes. Every barcode is validated against the expected sequence in real-time — page-order errors caught instantly.
Auto-Capture Mode
Motion detection captures pages automatically as the operator flips — idle, turning, settling, capture. Hands-free scanning.
Keyboard-First Workflow
Full scanning workflow without touching a mouse. Space to capture, arrows to navigate, Enter to complete.
Built-In Quality Control
QC reviewers inspect pages in 2/4/8-column grids, approve or reject with structured reasons. Rejected pages get manual crop correction.
Dual Storage
Every page saved locally + backed up to Cloudflare R2 in real-time. No data loss even if one storage fails.
Manual Crop Tool
Fix individual bad pages with interactive percentage-based cropping and live perspective correction — no full booklet rescan needed.
Scanned booklets flow directly into the MAPLES OSM evaluation pipeline — no export, no import, no waiting.
Support Operations, Right From Your Phone
MapleSOSM Calls — a dedicated Android app for your support team to manage evaluator communications at scale.
Instant Caller ID
Rich caller card overlay appears the moment an evaluator calls — name, role, progress, credentials status.
One-Tap Claim & Call
See the evaluator queue, tap once to claim and auto-dial. No double-booking.
Auto Recording Upload
Call recordings automatically detected and uploaded after each call. Zero manual steps.
Real-Time Dashboard
Today's calls, answered, missed, avg duration, status breakdown — all at a glance.
11,000+ Contacts Cached
Entire evaluator directory cached locally. Caller ID works instantly, even offline.
Resend Credentials Anywhere
One-tap credential resend from the overlay, in-call screen, contact detail, or dial pad.
All communication encrypted. No personal contacts read. Privacy Policy
Frequently Asked Questions
Everything you need to know about MAPLES OSM.
MAPLES OSM is an Online Answer Sheet Management System that enables educational institutions to conduct digital evaluation of exam answer sheets, replacing traditional paper-based marking. It handles the full lifecycle from physical booklet receipt to digital evaluation and result delivery.
MAPLES OSM is optimized for desktop browsers (Chrome, Firefox, Edge, Safari). The evaluation interface requires a minimum screen width for accurate marking. A dedicated Android app — MapleSOSM Calls — is available for support staff.
Answer sheets are scanned as high-resolution images and uploaded in bulk. The system supports multi-page answer books with automatic page ordering and QR code tracking.
Yes. We use JWT authentication, bcrypt password hashing, role-based access control, full audit logging, and encrypted connections. All data is hosted on secure, dedicated infrastructure with Redis-backed caching and database connection pooling.
Yes. The system supports multiple evaluation assignments for quality assurance and moderation workflows. Moderators can verify evaluations, flag inconsistencies, and the system detects duplicate evaluations.
The UI currently supports English, Hindi, and Tamil, with more languages easily addable through the extensible i18n framework.
Quality control is multi-layered: QC operators check scanned image quality, moderators review evaluated answer books and verify scores, and admins can approve results through a final review layer. The system flags inconsistencies and provides warning mechanisms.
Yes. MapleSOSM Calls is a dedicated Android app for support staff. It provides caller ID, call queue management, recording upload, and credential resending — all synced with the web platform. It requires Android 10+ and is only 3.5MB.
Caller identification works offline using the locally cached contact directory (11,000+ entries). Call logging and recording upload sync automatically when connectivity is restored.
MAPLES OSM is proven at 5,00,000+ answer books evaluated, with 11,000+ evaluators and 4,000+ concurrent evaluations. The architecture uses Redis caching, database connection pooling, and horizontal scaling for reliability at scale.
An overhead camera (USB webcam or document camera), a dark mat surface, and a computer running the MapleScan web app in a browser. No special scanner hardware required.
Each capture takes under 1 second to process (spine detection, split, perspective correction, save). A full 32-page booklet can be scanned in under 2 minutes.
QC reviewers flag bad pages, and operators can fix individual pages using the manual crop tool with live perspective correction — no need to rescan the entire booklet.
Load-tested with 40+ concurrent scanning stations. The system scales horizontally with multi-worker uvicorn and connection pooling.
The spine-based detection works with any open booklet size. Spine offset is adjustable (-30% to +30%) to accommodate different binding styles.
Ready to Transform Your Evaluation Process?
Join institutions that have already gone digital with MAPLES OSM. Get started with a free pilot program.