# Tracking blood from donor to recipient

> A management application for blood collection and donation centres, tracking stock, donors and recipients, alongside contributions to internal projects.

- **Kind:** case-study
- **Context:** TEC SARL · Full Stack Web Developer, internship
- **Year:** 2022
- **URL:** https://wilfriedago.me/works/tec-internal-tools

**Flow:** Donor → Collection → Stock → Recipient

a chain where a missing record is a unit nobody can use

My first engagement, as an intern: internal projects at TEC SARL — Monetic and
Tec-ticket among them — built with cross-functional teams.

## The blood bank

The piece I own in that period is a management application for blood collection
and donation centres. It tracks blood inventory, donors and recipients: what was
collected, from whom, what is in stock, and who received it.

It is a modest application that taught an immodest lesson about data. A blood
unit that exists physically but not in the system is a unit nobody will use in
time, and a record that outlives the unit is worse — it promises something the
shelf cannot deliver. Traceability was not a feature request here; it was the
whole point of the software.