We, as a group, worked on a real project during my internship at Product Plan in Iran that was aimed at designing an application for Point of Sale that a variety of businesses and retailers can use. The absence of an existing POS system presented an opportunity to build a completely modern and user-centric solution.

The project was done in Persian language but I tried to translate it as much as I could and also I designed the English version of the app.

Collaboration: Worked with a team of fellow UX designers.

My Role: UX Designer

Project Duration: 5 weeks

• Unleash the efficiency of a cloud-based system: Enable centralized data management, real-time inventory tracking, and seamless integration with third-party services.
  
• Craft a seamless customer experience: Simplify checkout procedures, offer personalized recommendations, and enhance payment options.
  
• Empower store employees: Provide intuitive navigation, streamlined task management, and comprehensive reporting tools.
  
• Elevate the brand's image: Foster customer loyalty and strengthen the brand's reputation through a modern, user-centric design.
  

Additionally, we listed all of their features to determine which ones are essential for POS systems.

Based on our analysis of these competitors, we found that POS applications must include the following features:

• Product entry
• Sale
• Receipt and Invoice
• Inventory
• Reports
• Accounting
• Customer Management
• Support
  

In order to gain a deeper understanding of the users and their needs, as well as the main challenges associated with using the POS, we conducted an in-depth interview using the GOOP (Go out of building) method. Our use of this method allowed us to understand user behavior in real environments and identify opportunities for improving the user experience.

We conducted 15 in-depth interviews with supermarkets, restaurants, pharmacies, and other trades. Tehran and Qom were the places where the work was done.

To get a more authentic insight from the interviewees, the interview questions were designed in a semi-open manner to allow them to express their thoughts and experiences in their own words. Interview questions were developed with the consensus of the team members and optimized during the interviews

Interview questions examples:

• What challenges have you faced in using the POS software?
• What facilities do you need that the POS does not meet?
• How long did it take to train a store cashier to work with the POS?
• What methods do you use to keep track of inventory when using POS software?
• Which processes take a lot of time?
• What reports does this software provide you with?
• What problems have you encountered when using the online version during internet disruptions?
• Does your software have a mobile version?
• What have you used your mobile phone for in the checkout?
  

In order to achieve a correct understanding of the users' needs and preferences, we used an affinity diagram to organize and group the interview results.

The main problems and pain points identified through user research are as follows:

• System performance will be disrupted in the event of an internet outage
• Product definition is a complex and time-consuming process
• It is essential for the user to reduce human error and make errors reversible
• Inconsistency between warehouse balances and fund balances
• The reporting process is difficult
  

Also, the most used features and identified priorities are as follows:

• Sales entry and invoice issuance
• Daily reporting
  
• Quick learning and ease of use of POS features
  

By analyzing and reviewing our research data, we were able to identify the concerns and expectations of the POS users and separate and prioritize them.

We attempted to focus more on these target groups during the design process by dividing the target users into two groups and creating their personas.

To better understand the experience of target users and visualize the data, we used a user journey map

Overall, we created 53 pages and tried to make the app easy to use for the user.

LogIn:

Sale Product:

Reports:

We performed a usability test from the most important part of the application, i.e., sales, in order to detect possible problems early on and improve the user experience. Five unmoderated tests were conducted.

10.8%

Wrong click rate

73%

Direct success of the task

5.9 s

Average time spent on each page