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Methodology

Built for clinical reality

Every MediXtract project follows an iterative and transparent structure designed around the documentation and medical expert time.

We build intelligent data collection systems and evaluate their performance at scale. This is a structured partnership: starting with clinical engagement, iterating through tuning cycles, and continuing in production.

MediXtract Methodology 2D Low Poly Illustration

The Project Lifecycle

A phased approach to building intelligent data collection systems.

Phase 01

Preliminary Study

Understanding the landscape.

Direct collaboration with specialists to understand data structure and terminology. We categorise variables to set the technical foundation.

Goal Classify variables and define decision tree logic.
Metric ~1 week per 100 variables.
Phase 02

Extraction Engine Tuning

Iterative refinement.

Comparing AI outputs against human-validated ground truth. We update the logic based on discrepancy classification (Improvements vs. Issues).

Goal Update engine until performance thresholds are met.
Metric Includes consistency testing (n=10) and reasoning audits.
Phase 03

Evaluation & Report

Transparent metrics.

Generating a structured report on precision, recall, and consistency. This report serves as the basis for expert feedback.

Goal Benchmark performance and identify structural challenges.
Phase 04

Expert Feedback Integration

Closing the loop.

Medical professionals resolve ambiguities and validate cohort results via the Architect. These insights feed directly into the next cycle.

Goal Final approval of extraction logic for production.

The Scaling Cycle (Batch of 100 Variables)

Each cycle represents 80 team hours:

30 hrs

Preliminary Study

30 hrs

Extraction Engine Tuning

10 hrs

Evaluation & Report

10 hrs

Feedback & Updates

Guiding Principles

Co-development with experts

Clinicians are co-designers from day one.

Continuous evaluation

Performance reports are generated every cycle.

Transforming data culture

Assisting teams in building better variables.

Privacy by design

Governance (Anonymisation, DLP) is built-in.