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User interface design – UI and UX

User interface design envisages both the operating process between the user and the device and the digital interface between them, i.e., the interface. The goal is to achieve the most pleasant and easy-to-use interface possible that will provide a comfortable user experience.

User Interfaces (UIs) are interfaces between the user and the device by which devices are accessed. A good interface makes using the device as easy, efficient and safe as possible. The less there are things to memorize and remember in the UI, the better it is. A logical and intuitive interface improves the usability of the device and reduces the possibility of errors.

A pleasant user experience (UX) is achieved when user interface design takes user logic and interactivity into account. Therefore, before the actual user-viewed interface is developed, the structure of the user interface, progress of the operation process and actions left to the user are designed.

Once the operational logic is complete, the software is implemented and tested until the user interface is verified.

The building blocks of a good user experience

When designing an interactive interface, a smooth, understandable dialogue is created between a person and a product, system, or service. Understanding the real needs of users as well as knowing the usage situation, processes and users' modes help design a good user interface.

The user experience is influenced by

  • the smooth operation of the user interface,
  • flexibility,
  • coverage and
  • integration extended as far as possible.

A pleasant, brand-friendly visual appearance on the part of the user interface enhances the user experience even more.

A good interface is suitable for various users in a wide range of usage situations and environments

A functional, efficient and visually pleasing user interface improves usability and does not provoke frustration or other unpleasant sensations. However, user experience is subjective, and various users value various things. In addition to the user, the user experience is affected by the time, place and situation of use, and they are not always the same.


User requirements

Device users are diverse, and their behavioral patterns can differ considerably from each other. They can have different needs that may be mutually contradictory. Some user needs may be related to physical things, such as the vision and height of the user. Some needs may be related to culture and preferences, such as language and characters used.


Operating environment

The operating environment and situation also impose their own limitations. For example, temperature, luminosity, cleanliness, noise, vibration and cramped conditions may affect the operating situation and must be taken into account in the user interface design.


Operating situation

The operating situation, in turn, can be part of a normal and surprise-free process, but sometimes sudden situations and haste may arise. Some user interfaces are used continuously, but some only occasionally or extremely rarely. A good interface is optimized to work not only in normal operating situations and ‑environments but also under surprising circumstances.


Use cases

Devices and their operating processes impose their own requirements on the interface, which designers need to understand. To obtain as good an understanding as possible of how the device is used, various use case scenarios are made to guide the design of the actual interface. In accordance with the possibilities, sometimes changes can also be made to device-related operational modes and processes.



For example, investing in usability can speed up operation processes, make usage comfortable, reduce the number of errors made by the user, prevent situations of abuse, and promote operational safety.


Visual look

In the visual appearance of the interface, matters promoting usability as well as the brand of the device manufacturer are taken into consideration. Usability is influenced by fonts, colors, graphic symbols, icons and layout. The brand look may appear as colors, fonts, logo or other graphical elements, as well as similarity to the user interfaces of other devices of the brand.

Our team implements user interfaces into all apps

The design of user interfaces requires seamless collaboration between many industry professionals. Our user interface team includes specialists with diverse expertise and experience in several fields. To ensure the top result, design features an industrial designer along with software developer and test engineer. 

Contact our sales and we'll discuss how we can help you to move forward with your project!

Contact us

Matti Ojala
+358 20 7419 404

Juha-Matti Helisten
+358 20 7419 432

Jari Maijanen
+358 10 5565 208

Ari Hakkarainen
+358 20 7419 406