Blog / Category
Privacy & Compliance
GDPR, HIPAA, EU AI Act, and biometric data compliance for applications that collect, process, or predict body measurements — with a focus on stateless architecture as the compliance default.
14 articles · ← All categories
How to Store Body Measurements: Database Schema Design
Database schema design for body measurement applications — what to persist, what to compute on demand, privacy-by-design patterns, and temporal versioning.
How to Add Body Measurements to Your App Without Photos or Privacy Risk
Photo-based sizing creates GDPR exposure and user friction. How statistical body measurement prediction works as a privacy-first alternative, with Python code.
GDPR Right to Erasure for Body Measurement Data: Implementation Guide
GDPR Article 17 Right to Erasure for body measurement apps — what must be deleted, cascading deletes, and how stateless API architecture simplifies compliance.
How to Build a HIPAA-Compliant Patient Body Assessment Feature
Add body dimension predictions to a healthcare application without HIPAA liability — stateless API architecture, no PHI transmission, and no BAA required.
EU AI Act 2026: What Body Measurement APIs and Their Integrators Need to Know
EU AI Act from August 2026 — how it applies to body measurement APIs, risk classification, documentation obligations, and what developers must do.
The Hidden GDPR Risk in Your Fashion App's Sizing Feature
Photos are biometric data under GDPR Article 9 — requiring explicit legal basis and DPAs. What this means for fashion sizing apps and the stateless alternative.
How to Build a HIPAA-Ready Fitness Onboarding Flow Without Storing a Photo
HIPAA-ready body measurement collection for fitness apps — stateless API design, onboarding patterns, and what 'HIPAA-ready by architecture' means in practice.
Bias Auditing in Body Measurement APIs: What to Test and Why It Matters
How to audit anthropometric prediction APIs for demographic bias — which population groups are most at risk, how to test, and how to fix it.
Photo-Based vs. Statistical Body Measurement: Which Approach Is Right for Your App?
Photo-based body measurement vs. statistical prediction from height and weight — accuracy, privacy, user friction, and which use cases each approach handles.
OAuth 2.0 and JWT for Health Measurement APIs: Security Patterns
OAuth 2.0 and JWT patterns for body measurement APIs — grant type selection, claim design, API key management, and least-privilege access to health data.
Stateless vs. Stateful Biometric Architecture: The Decision That Defines Your Stack
Stateless vs. stateful biometric architecture — compliance, security, and product implications that compound over time, and how to decide before you build.
Least Privilege in Biometric Systems: Designing for Minimal Exposure
Least privilege design for body measurement systems — access control, data minimization, anonymization patterns, and why stateless APIs embody this principle.
The Bertillon System: How 19th-Century France Invented Biometric Identification
In 1879, Alphonse Bertillon invented the first systematic body measurement system for criminal identification — the origins of anthropometry in criminology.
How to Build a Children's Sizing Feature Without Storing Children's Data
Children's size calculator using the pediatric API — age, height, weight to clothing size — with stateless architecture for GDPR and COPPA compliance.