Libretto: the full story | Francisco Javier Núñez

Who I interviewed, how I read the notes, why each version changed, and what I can't say yet.

Who I interviewed

I started with 5 interviews. These are the notes behind the case study, in more detail.

Three things I heard

Paper is fragile. A vaccination card often has to be shown in person. "If you lose it, you're a goner."
Records are scattered. Different clinics, different systems, nothing shared. "You gotta start from scratch."
Appointments live everywhere. WhatsApp messages to yourself, a whiteboard in the kitchen, SMS reminders, a notebook.

Two people, Anne and Pablo

Anne, 25. Main persona · Freelance copywriter · Lives with her partner and daughter Amapola (6)

"I don't want to depend on physical copies. If I carry them with me and I lose them, I'm screwed."

Goals: All of Amapola's records in one digital place; Reminders for appointments; No more worry about losing papers
Frustrations: Can't find the right paper fast; Fears losing the only copy; No single place to manage appointments
With technology: Intermediate. Google Drive and Calendar. Android phone, Windows laptop.

Pablo, 31. Second persona · Art teacher · Divorced father of Romeo (9)

"A notification system will greatly help me."

Goals: Simple digital reminders for appointments; Print records as a paper backup; Log Romeo's health in an organised way
Frustrations: Worries digital records get lost; Photos of paper are blurry to share; Forgets appointments without a reminder
With technology: Basic. Messaging apps and WhatsApp notes. Samsung phone, iPad, ThinkPad.

How I sorted the first-round notes

In the first round, 5 people tried the first prototype. I wrote what I saw on sticky notes, one colour per participant, then grouped the notes into themes.

First round observations on sticky notes, one colour per participant — Observations from the five sessions

The same notes grouped into themes — Grouped into themes

First round notes: group 3, Home screen organisation, with the insight to reorganise Home — My first round notes: Home screen organisation.

What the first round showed

The first round was a usability test of the first prototype, not an interview. 5 of 5 people expected to see and manage where a file is stored. 5 of 5 were confused by the old "Add more details" screen. 2 of 5 expected to name the file.

What I can't say yet, and what's next

Four people is a small sample, and the validation round has not been done yet.

Limits

A small sample: 4 participants on a desktop screen-share, mostly friends and colleagues, none a confirmed parent.
Search was barely used.
The newer flows have no user evidence yet, and one session is not a verdict.

Next

A validation round with one or two new participants.
Tests on a real phone with parents.
Search with a realistic list of records.
Controlled sharing and plain-language privacy.