Kjosk is an hourly powerbank rental service based on the principles of the sharing economy. The product solves the problem of nervously searching for sockets and allows you to enjoy your smartphone whatever the circumstances. Kjosk stations located in different parts of the city (e.g. in shopping malls) are a reliable source of energy and a simple way to stay connected to the world.
The task set before me was to develop a concept for a powerbank rental service. The points of contact between the user and the service are the touchscreen and payment terminal-equipped Kjosk stations located in the city and the Android/iOS mobile application. An additional task was to develop a system for customer service staff. The new user registration and rental process had to be developed separately for the Kjosk stations and the mobile app. The biggest challenge was to make the service as accessible as possible and to simplify the rental process in a situation where the user has a discharged smartphone, does not have a Kjosk account (and therefore has no card connected) and wants to rent a powerbank to charge it. It was also necessary to envisage scenarios in which the user already has a Kjosk account, but has a discharged phone or is about to run out of battery and wants to rent a powerbank as soon as possible. In addition to this, the maximum number of possible problems had to be foreseen, such as expiry of the connected card, payment problems or damage to the equipment.
I focus the entire design process on the user, so as to understand their conscious and unconscious needs. I try to validate the results of the design process as often as possible by experimenting on prototypes and frequently testing hypotheses during discussions with users, so that at each step I can return to the stage of generating ideas or even defining the problem and, if the situation requires it, start the process from the beginning.
I wanted to find out what people do when their phone disconnects while they are away from home: how they deal with the problem, whether their use of the phone changes, and whether they feel discomfort about not being connected to the world. I was also interested in what their experience is like with sharing services (scooters, city bikes, cars for minutes). I conducted personal interviews with representatives of generations X, Y and Z.
From the quantitative survey, I learned that the focus should be primarily on generation Z and to a lesser extent on generation Y. Only single individuals from generation X showed interest in the service.
The survey was great for quickly gathering information from a sample of my target audience, and the in-depth interviews allowed me to gain a deeper understanding of user behaviour. One of the things I learned from the interviews was:
I used the results of the research and interviews to create a fictional character, Michael. This helped me to better understand how I could help him achieve his goal of having a charged phone and freedom from sockets.
Meet Michal Kowalski, a 17-year-old lover of games, scooters and social media who values his independence and wants to stay in touch with his friends.
To develop a brainstorming plan for the product development roadmap I developed Point of View and How Might We based on Michael's empathy map and persona.
How will Michael be able to borrow a powerbank for the first time without having an account with us?
How will Michael be able to check where the nearest Kjosk station is and find out if there are free powerbanks?
How do you guarantee Michael a free slot to donate a powerbank?
How do I enable Michal to send an invitation to Kjosk? How do I enable Kamil to register on his phone?
Having identified a robust set of core functions, I mapped the information architecture for both the desktop Kjosk and the mobile app. This allowed me to visualise the hierarchy of major and minor elements.
I developed a User Flow that allows for a seamless and consistent user experience through the entire process, from registering, plugging in the card, borrowing the powerbank, navigating to the next Kjosk, returning the powerbank, and collecting feedback. I developed the user flow for both the action starting in the mobile app and at the Kjosk station. I prepared each flow for both new and returning users.
Below is a small section of my work:
By now I had gathered enough information to move on to sketching wireframes. The large and completely empty wall of our office proved to be the perfect place to lay out sketches and connect them with woollen threads. It was an activity that brought me a lot of fun and at the same time allowed me to catch any flaws in the flow I had developed in time. During this process, I tested all possible scenarios for the use of our service and, most importantly, the interaction between the mobile app and the Kjosk station.
At this stage, I have prepared clickable prototypes at a medium level of accuracy. Below are preliminary designs of several screens.
I conducted user testing of a mid-fidelity prototype on a mobile phone. I wanted to see how users would perform certain tasks when given a specific task to perform. I was curious to see which screen elements they would try to click on and how long it would take them to complete the action. The aim of this step was to identify points that could be improved in future iterations.
I tested, among others:
The user tests were extremely valuable. During them, I highlighted several shortcomings. I organised my findings in a similarity diagram to identify problems and potential solutions to be addressed in future iterations.
After making changes to the sketches, it was time for the visual design. I wanted to keep a clean design and contrasting colours in line with the brand book.
The design process has no beginning and no end. It involves constantly adapting the product to new user needs and changing realities. In order for the product to develop harmoniously, it is necessary to be in constant contact with the user. It is important to record user sessions with tools such as FullStory, observe feedback in the shops, and create a space for free discussion with users, where they can share their ideas for the development of Kjosk.
In addition to the profitability indicator, indicators such as:
Developing a comprehensive mobile app and Kjosk station app was certainly a large and challenging project. I had to develop an app that would meet the high expectations of generation Z and at the same time take care of the harmonious flow between the mobile app and the Kjosk station. Through surveys and interviews, I was able to discover that most people were concerned about problems with the system when using other sharing services. Adapting the existing aesthetics in line with the brand book while keeping freedom with the visual elements was also challenging, as I was free to give the app a more distinct character, but I could not deviate too much from the original aesthetic. I am happy with the end result. It was one of the most developmental projects I have been involved in.
Product Owner: Krzysztof Adamski
UX Design: Jakub Nowak
UI Design: Jakub Nowak, Bartłomiej Balicki
illustration: Anna Kusz
Marketing: Agata Zborowska, Filip Styczyński, Jakub Goleniewski, Konrad Kocowski, Weronika Kwiatkowska, Grzegorz Żarnecki
Developers: Software Interactive, Paweł Karczewski, Ania Zavodian, Ewa Chwastek, Artur Śpiewak, Paula Śpiewak