Overview: Digital Transformation in Maintenance

This project represents my 30 ECTS Master's Thesis for the HCID (Human-Computer Interaction and Design) Double Degree program. Collaborating with an industrial partner, Sisteplant, I executed the end-to-end redesign of the mobile module for their Computerized Maintenance Management System (CMMS). The goal was to improve the User Experience (UX) by providing an user-centred digital tool that empowers field technicians in complex industrial environments.

The Challenge: Information Obesity

Maintenance operators work in high-pressure environments constantly interacting physically with different elements. The previous desktop-centric system resulted in:

• High Cognitive Load: Small screens cluttered with irrelevant administrative data.
• Inefficiency: Critical tasks buried under multiple navigation layers.
• Low Adoption: Steep learning curve for non-digital native technicians.

The challenge was to transform complex technical data into a Task-Oriented UI that presents exactly what the technician needs, when they need it.

Methodology: Rigorous User-Centered Design

I applied a structured UCD process to ensure the solution was grounded in real user needs:

• Discovery: Conducted semi-structured interviews with stakeholders and end-users to understand the "Field Technician" persona.
• Analysis: Used Dovetail for inductive/deductive coding to identify critical pain points in current workflows.
• Definition: Extracted the most critical tasks and prioritized them for the redesign.

Solution: Adapting Carbon Design System

To ensure scalability and consistency across the system, I adapted the Carbon Native Mobile design system focusing on three pillars:

• Progressive Disclosure: Utilizing accordion patterns to hide secondary information until needed.
• Actionability: Floating Action Buttons (FAB) for primary tasks like "Create Request" or "Report Failure".
• Consistency: Providing with the same behaviour and unifying interactions to reduce mental effort.

Validation & Impact

The prototype was validated through on-site usability testing with maintenance professionals, resulting in: