TESSER
About Tesser.
Ontol for Clinics
A world where everyone understands and takes charge of their health
Tesser simplifies complex medical data through AI so that anyone can understand it, bridging the medical information gap and realizing person-centered medical innovation where individuals have health literacy and leadership.
Our Vision
We provide patients with the capability to understand and proactively manage their health, and medical institutions with AI solutions that automate repetitive and specialized tasks. We also collaborate with hospitals, insurers, and pharmaceutical companies to create an environment for personalized health management through effective linkage and utilization of health data.
The Reality on the Ground
4 Challenges Screening Centers
Face Every Day
Ontol solves these problems with AI.
Repetitive Manual Work
An average of 9 minutes per case — 10,000 cases a year means 1,583 hours spent typing findings.
Risk of Human Error
Repetitive input under fatigue increases the risk of typos and omissions, threatening medical quality.
Hard-to-Understand Reports
Complex PDF results lower patient comprehension, leading to reduced return visits and trust.
High Printing & Mailing Costs
Annual costs for printing and mailing routine and comprehensive check-up results can reach tens of millions of won.
Partner Clinics & Institutions




























The Current Reality
Dozens of Cases,
All Manual Every Time
An average of 9 minutesper report —
10,000 cases a year means 1,583 hoursof typing.
Ontol Scribe
Ontol Scribe.
Automated comprehensive findings that increase clinician efficiency
Based on the medical expertise and empirical experience accumulated while operating Ontol App, a health management AI, Ontol Scribe built accurate and detailed medical data analysis AI. Dozens of specialized AI agents provide advanced findings by reflecting each hospital's actual medical data and clinician feedback.
Lab Results
AI Draft Finding
John (25027897)
Sample Data2025-08-09 Comprehensive Exam
Core Features
Ontol Scribe Core Features
Reflects real usage environment based on hospital DB learning
Auto-applies hospital-specific expressions & rules
Generated from common pre-trained data
Difficult to reflect hospital-specific formats
Immediately reflects edits to items/findings
Auto-applied to the next finding
Cannot remember user edit patterns
Repeated corrections required
Hospital-specific templates, expressions, and items configurable
Flexible customization
Same features for all hospitals
Cannot reflect detailed environmental differences
Average 1–2 weeks
Reduces operational time and cost
Requires design/testing before deployment
Time varies by hospital
For Patients
Ontol Report.
Instead of complex PDF reports,
deliver smart health check-up reports
that patients can actually understand — instantly on mobile.



* Screens shown are based on sample data
Key Features
One report. A new patient experience.
Mobile-Optimized
Digital reports easy to view on smartphones, not traditional PDF viewers.
Rich Content
Enhances understanding with AI summaries, multi-year analysis, etc.
Convenience Features
Voice reading, multi-language translation for user convenience.
Chatbot Support
Resolve questions and get guidance for follow-up check-ups via AI chatbot.
Appointment Linkage
Directly link to in-hospital appointments based on check-up findings.
EMR Integration
Real-time results retrieval and mobile report creation via system linkage.
Based on printing and mailing costs
Increased re-visits through history analysis and personalized care
Customer Reviews
Stories from Adopting Clinics
Finding time cut by more than half
After adopting Ontol Scribe, the time spent writing findings dropped to less than half. The part our medical staff appreciates most is that the accuracy is so high, there's rarely any need for corrections.
Patients finally understand their results
Patients receive the report and say 'I can finally understand my results.' Return visit rates have noticeably increased and it's had a positive impact on the hospital's reputation.
Adoption was surprisingly easy
EMR integration was much faster and simpler than expected. Tesser's onboarding support was thorough, so there were no major difficulties during the adoption process.
Security & Compliance
The most sensitive patient medical data— we never take it lightly.
Ontol Scribe delivers enterprise-grade security through an architecture built on international medical information protection standards.
Dedicated Security Network & Data Encryption
All data transmissions are encrypted via TLS 1.3 protocol, and sensitive patient information is protected with AES-256 field-level encryption. Hospital-specific isolated databases and dedicated secure networks are established to block unauthorized external access at the source.
De-identified AI Environment
No personally identifiable information is passed to the AI engine. Identifiers such as names and contact details (PII) are automatically de-identified before AI calls, and all AI usage history is comprehensively logged by hospital, reception, and timestamp for transparent management.
Integrated Access Control & Audit System
Every data access request is logged with a unique tracking ID, and sensitive information is automatically masked during retention. Role-Based Access Control (RBAC) strictly limits data access scope by role, ensuring operational integrity.
Onboarding Process
From Adoption to Operations,
Tesser Team Is With You
Consultation
We design a solution configuration suited to your hospital's size and operations.
Contract & Setup
After signing a standard contract, we proceed with integration settings for your hospital's EMR.
Data Integration
We complete the API connection with existing screening data and EMR systems.
Pilot Operation
During the 2-week pilot period, we verify quality with actual screening data.
Full Deployment
After verification, we apply to full hospital operations and continuously refine.
Frequently Asked Questions

