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B2E · Dataviz · Mobile App · Web

IoT Maintenance

Operate and maintain devices and gateways for 

industrial sites

Client 

TotalEnergies

Scope

1 → n

Technology

Thingworx

Year

2025 - present
2 operators using an ATEX device in solar panel site.
My results
  • I presented an UX audit to the product team to priorise UX optimization.  

  • I enforced web accessibility compliance. 

  • I created new components for mobile usage with gloves from existing Design System of desktop. 

Highlights

Context

The starting point

TotalEnergies uses cybersecured ThingWorx gateways to centralize industrial data, enabling app deployment for real-time operations, predictive maintenance, and energy tracking across production sites.

Product goal 

By spotting flawed device and gateway data, IoT platform dashboards drive predictive maintenance and ensure data integrity.

My objectives

My mission was to improve the experience of users for both instrumentists and maintenance operators in order to agir vite en cas de défaillance d'un des capteurs.:

​

  • UX coaching: An ergonomic audit of the desktop version was requested to assess the current state of the platform, it was an opportunity to identify quick wins for continuous improvement, such as fixing accessibility colors, wordings, or user flows.
    Case study: Ergonomics Audit
     

  • UX+UI delivery: Expanded the platform to mobile, specifically optimized for glove-friendly use in industrial environments.
    Case study: ATEX extension

Case study: Ergonomics audit

Device concerned
Desktop

My [personal] objective

For this ergonomics audit, I combined Amélie Boucher's criteria with the AFNOR standard. Using AI allowed me to speed up the process while double-checking my own analysis.

A slide based on Amélie Boucher's ergonomic criteria

↪ Evaluation matrix (slidehow extract)

Verdict 

Slidehow extract of "Device dasbhoard" page audit

↪ Device dasbhoard evaluation (slidehow extract)

Some elements are identified only by myself and some were suggest to add by AI reviews. Then, I established a synthetic presentation to sum up and classify by severity. 

Before UI fixs
After UI fixs

↪ Before/After a part of quick fixs are implemented

What I have learned

Despite lacking an initial product presentation, I quickly grasped key expectations. The team praised the quality of my analysis, allowing us to co-create evolution roadmaps for current and future dashboard technologies. However, the lack of direct end-user interaction remained a drawback in fully validating usage choices.

TotalEnergies operators with gloves using ATEX device

↪ Operators with gloves

Case study: ATEX extension

Goal

Scaling the IoT platform to mobile: Empowering maintenance operators with safety-compliant, glove-friendly digital workflows.

Device concerned
ATEX

Project objective

Replace manual device-by-device field inspections with an intuitive mobile IoT platform, empowering maintenance operators to monitor device health in real time and enable proactive maintenance.

UI constraints

Because an ATEX equipment engineered for glove use, the screen features higher touch sensitivity than an iPhone, but with lower targeting precision. The UI adapts to this with larger touch targets and generous spacing.

↪ Gloves ISO sizing

TotalEnergies guidelines provided upfront best practices to accurately translate glove usage constraints into proper touch target sizes for physical/haptic interactions.

Figma interface to visualize the size of a component

↪ Dual-size CTA optimization (bare hands vs. gloves) 

An extract of the documented userdlow on Figma

↪ Extract of the ATEX documented flow 

ATEX mockups

↪ ATEX interfaces

What I have learned

Despite missing direct user testing before the pilot, strong team collaboration secured the project. We continuously iterated and streamlined user flows to guarantee seamless navigation, full compliance with industrial standards, and optimal efficiency—specifically designed for glove-friendly, on-site use.

Other works

B2E · IT Portal · Web 

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