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Web-Based OCR Annotation Application

Services Covered:

Custom Software Development
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Industry
Industry

Information Technology

Duration
Duration

1 month

Budget
Budget

Confidential

Start Date
Start Date

1 June 2026

Team Size
Team Size

1-5

Engagement Model
Engagement Model

Offshore

Project Capability Score (PCS)

gauge meter
83/100
Strong

Project Capability Score (PCS) estimates how capable LTS Group is of successfully delivering a project like this, based on its past experience, track record, and ability to handle similar work. Learn more about PCS

Client

Confidential

mapMunich, Germany

Project Summary

LTS Group built a web-based OCR annotation application for a software solutions company that included a split-screen annotation UI, integration features, workflow controls, and audit/tracing. The app sped up the client's processing and reduced manual work while replacing an older client-based application with modern web technology. The vendor delivered work in sprints following agile principles and was noted for reliability and strong communication.

Key Challenges

  • Build an web-based application to annotate OCR results

Project Deliverables

  • Annotation UI with split-screen document viewer and field panel
  • Bidirectional bounding-box linking for fields
  • Inline value editing with labels, zoom, pan, multi-page navigation, and keyboard shortcuts
  • JSON Schema validation and webhooks with auto-export of output JSON
  • Task queue workflow (New → In Progress → Completed) with annotator, reviewer, and admin roles
  • Full audit and traceability including change log, timestamps, user IDs, and access logging at the API layer

Project Solution

LTS Group designed and implemented a web-based annotation platform featuring a split-screen document viewer with a field panel, bidirectional bounding-box linking, inline value editing, zoom/pan/multi-page navigation, and keyboard shortcuts. They implemented integrations including JSON Schema validation, webhooks for task-selected and task-completed events, and auto-export of output JSON. The vendor defined a task-queue workflow with roles for annotators, reviewers, and admins, and delivered audit and traceability features such as a full change log, before/after values with timestamps and user IDs, and access logging at the API layer.

Project Outcome

  • Improved system speed
  • Sped up manual processing
  • Reduced the overall amount of manual processing
  • Replaced the old client-based application with modern web technology
  • Delivered work in sprints following agile principles and maintained reliable communication

Platforms

  • WebWeb

Tech Stack

  • RESTful APIRESTful API

Client Endorsement

Overall Review Rating

5star

Timeliness

Cost Rating

Willing to Refer

Quality of Deliverables

“LTS Group's work improved the client's system speed, reduced manual processing, and replaced an old client-based app with new web technology. The team followed agile principles and was highly reliable. They were also committed to the project and met all expectations.”

Anonymous

CTO

Note: This endorsement is based on publicly available client feedback from external review sources.

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