Carrefour Taiwan's PSI system
PSI: Purchase, Sales, and Inventory
Introduction
As this is an internal system for Carrefour, it is not suitable for public display.
Goal of this product
Interview users, design and develope 5 new functions for the PSI (Purchase, Sales, and Inventory) system to help Carrefour Taiwan with its Paperless E-dashboard
Who is our Users
All Carrefour Taiwan employees who involved in PSI system
Time & Members
Oct, 2022 ~ June,2023
UI/UX Designer x1(Me), PM x2, Training department personnel x6, Front-End Developer x3 and Back-End Developers x3
Challenge & Solutions
Spent a significant amount of time understanding user behaviour
Because lacking initial experience in managing goods in a large retail setting, I relied on observations, interviews, and reviewing past data to comprehend user contexts and pain points.
Conducted interviews with regional managers across Taiwan
In the five project stages, the team dedicated at least half a day in each phase to meet with regional managers across Taiwan, discussing pain points and requirements. Feedback from the previous stage was also sought during these sessions.
The project scale was large
As the project impacts sales management across Taiwan, the client has exceptionally high standards, paying meticulous attention to details. This has caused me some pressure, but I strive to cooperate and communicate diligently, ensuring customer satisfaction to the best of my ability.
Stringent standards of UX and UI design
As the project impacts sales management across Taiwan, the client has exceptionally high standards, paying meticulous attention to details. This has caused me some pressure, but I strive to cooperate and communicate diligently, ensuring customer satisfaction to the best of my ability.
Spent a considerable amount of time creating prototypes
Due to client requirements, there is a need for prototypes at each UI stage to showcase progress. Therefore, a significant amount of time has been allocated to creating prototypes.
Designed for an uncommon screen size
I need to design for an uncommon 4-inch screen used in an Industrial PDA (Android). Additionally, this device has scanning functionality, so the design must take this behavior into special consideration. So, I designed according to the 4-inch dimensions and used a mobile simulator with a similar-sized window to assess readability and user experience. When designing screens related to scanning products, I specifically integrated the scanning action into the user flow. Additionally, I included reminders for users about when they can initiate a scan.
Process
First stage - Product tag management
Got rough wireframes from PM and had a discussion with group members. Kick-off meeting and interview with regional managers to know their needs and pain point. After few weeks gain feedbacks from users by prototypes and finalized the UI design to hand over to develop team
Second stage - Returns management
Interview with regional managers, gain feedbacks from users by prototypes, and finalized the UI design
Third stage - Out of stock management
Same as previous stage
Fourth stage - Store management
Same as previous stage
Fifth stage - Task management
Same as previous stage
Menu redesign
Redesign the menu to reduce the hierarchy, making the menu simpler to use and easier to find functions.