// case_study / aquilon, ACNUSA

Designing clarity and collaboration into complex, regulated case management_

The_brief

Design a fine management tool for the Airport Nuisance Control Authority, streamlining complex multi-stakeholder workflows and reducing case processing inefficiencies.

My_role

Senior UX/UI Designer, design lead on the project, responsible for driving the design from discovery to development handoff in close collaboration with Product, Tech, and end users.

client
ACNUSA
product_type
SaaS Web
industry
Public Sector, Air Transport
duration
6 months
location
Paris, remote
tools
Figma, Miro
expertises
User Research, UX Design, UI Design, Design System, Branding
team
Project Manager, Technical Manager, ACNUSA Permanent Rapporteurs, ACNUSA Permanent Team Members
/* project_constraints */

What I had to work with

[01]

Regulated Workflow

Users operated within a workflow governed by strict legislative requirements and fixed procedural steps, supported by long, document-heavy case files requiring careful management.

[02]

Tight Timeline

The project timeline was limited, constraining the scope of design work that could be realistically explored and validated.

[03]

Feature-Driven Brief

Initial specifications were highly detailed and feature-driven, with little focus on user journeys, needs, or the rationale behind requested functionalities.

/* strategy_and_impact */

How I worked

[01]

Improving efficiency within a fixed, regulated process

Process Analysis
ACTION

Beyond designing user flows, I analyzed the underlying working process in detail to identify where efficiency could be improved, such as automating repetitive actions, clarifying steps requiring manual validation, and integrating external tools already used by operators.

OUTCOMES

This helped streamline daily work without changing the regulated process itself, reducing friction and making complex operations easier to manage.

[02]

Designing for clarity and scalability under time constraints

Detailed wireframes workflow
Design System
ACTION

Given the limited timeline and my focus on creating an efficient workflow, I prioritized clear user flows and wireframes, worked closely with users through frequent exchanges, produced detailed mockups only for the main screen, and delivered a structured design system so the development team could build the remaining screens from wireframes.

OUTCOMES

This ensured that critical workflows were well thought through early, while allowing the product to scale consistently and efficiently during development.

[03]

Reframing the product around real user needs

User journey Analysis
Current workflow analysis
ACTION

Through interviews and observations, I challenged the initial brief when it became clear that adding features alone would not improve the experience, and instead rethought how the system should work to better support users.

OUTCOMES

The final solution was more coherent, simpler to use, and better aligned with actual user needs rather than predefined requirements.

/* solutions */

What I did

[01]

From rigid structure to Dynamic case history

PROBLEM

All cases use the same structure despite having different journeys

DECISION

I replaced static forms with a dynamic case history that grows based on actions and events.

UI SOLUTIONS

History built block by block

Cases build their history block by block as actions are taken

Automatic next steps and deadlines

Core process stages automatically reveal next steps and deadlines

Manual additions as cases evolve

Additional documents, communications, or materials can be added manually as the case evolves

[02]

From difficult handoffs to Clear visibility

PROBLEM

Users can't quickly understand file history, making handoffs between teams difficult

DECISION

Make a case's full history and next steps visible at a glance, so anyone taking over has context immediately

UI SOLUTIONS

Timeline view for handovers

Created timeline views so users can quickly see past events and upcoming actions when taking over a case.

All files grouped by case

A 'File View' feature displays all files grouped under the same case, each with its extracted information and the rapporteur's summary used for the plenary session.

[03]

From tool-switching to Integrated workflow

PROBLEM

Key workflow steps rely on external tools

DECISION

Eliminated tool-switching by integrating key functions

UI SOLUTIONS

Plenary scheduling

Previously managed outside the platform, provisional and confirmed schedules can now be set directly within it.

Request tracking

Reports, modification requests, and requests for additional elements are now automatically transmitted and stored in the case history, where before they lived outside the file entirely.

Custom statistics

Statistics that used to be compiled manually outside the platform can now be built in, with users selecting their own data parameters and timeframes.

[04]

From time-consuming work to Streamlined task

PROBLEM

Many tasks were repetitive and nearly identical each time, taking up a lot of time.

DECISION

Streamlined common actions and added document templates with pre-written sections for recurring reports.

UI SOLUTIONS

Smart file upload

Users can enter all related data while previewing the file side by side

Document templates

Writing assistance with pre-written templates and paragraph sections for recurring reports

[05]

From unclear task priorities to Dashboard by actions

PROBLEM

Users couldn't easily see what tasks they needed to do for their role

DECISION

Create a dashboard structured around what each role needs to act on, not around raw case data

UI SOLUTIONS

Tabs matched to user roles

Cases are organised by what needs to be done, with each tab matching specific user roles so users can immediately see their relevant tasks.

/* outcomes */

The impact I made

50%

reduction in daily task completion time

4.8/5

user satisfaction score

100%

team adoption within 2 weeks

next_projectAndromeda