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User-Experience and Usability Review of a Smartphone Application
Published in Marcelo M. Soares, Francisco Rebelo, Tareq Z. Ahram, Handbook of Usability and User Experience, 2022
Marcello Silva e Santos, Sebastian Graubner, Linda Lemegne, Bernardo Bastos da Fonseca
Mobile apps are basically software applications designed to run on smartphones, tablets and other mobile devices. In a recent paper, as Swaid and Suid (2019) cited info on the growth of the mobile apps business, they went ahead and outlined some projections. Back in the year 2016, it was expected that by 2020, mobile apps would generate around 189 billion US dollars in revenues via app stores and in-app advertising. But the explosion of mobile apps that came in just about every industry and the multitude of possibilities of their use was about to amaze the most skeptical tech-savvy geek on the planet. As of 2018, the updated prediction shows almost half-trillion dollars of revenues for 2020 and just a bit shy of US$ 1 trillion by 2023 (Statista, 2019).
Do we really consider their concerns? User challenges with electric car sharing
Published in Mobilities, 2023
Charlotta Isaksson, Malin Pongolini
The car-sharing app presupposed that the user already had access to various digital resources including a smartphone with Bluetooth, mobile Internet, BankID (a mobile app-based authentication solution), and an email address. One initial challenge was to connect the car-sharing app with these existing digital resources. For some that meant changing the existing resources, such as registering a new email address, since their existing ones were identified as invalid by the app. However, changing existing resources was not always possible. In fact, one of the drivers dropped out of the trial because the app was not compatible with his smartphone. Thus, the digital technology that was supposed to facilitate car sharing interrupted it instead when it did not conform with the resources of users (cp. Dowling, Maalsen, and Kent 2018).
Can digital personal assistants persuade people to exercise?
Published in Behaviour & Information Technology, 2022
Jeni Paay, Jesper Kjeldskov, Elefterios Papachristos, Kathrine Maja Hansen, Tobias Jørgensen, Katrine Leth Overgaard
A total of 48 volunteers (26 males and 22 females) participated in the study. They were recruited from a variety of sources, including social media, but most of them were volunteers from the Computer Science department of Aalborg University. Their age ranged from 17 to 56 years, with an average age of 28.3 years, with a standard deviation of 9.4. According to a self-assessment questionnaire, administered before the study, 27 of our participants considered themselves to be physically active while the remaining 21 were neutral or not active at all. Twenty participants regularly used an activity tracker of some type (e.g. mobile app, smartwatch). In regard to previous experience with DPAs, 11 reported that they were using them frequently, 24 that they had tried using them at some point, while 13 had no previous experience with them whatsoever. Seven of the participants that reported using DPAs frequently had a physical device at home, while the remaining four interacted with the DPA on their mobile device.
Wearable inertial sensors for human movement analysis: a five-year update
Published in Expert Review of Medical Devices, 2021
Pietro Picerno, Marco Iosa, Clive D’Souza, Maria Grazia Benedetti, Stefano Paolucci, Giovanni Morone
Moreover, whenever a wearable IMU is used for collecting data of clinical relevance intended for clinical trials, healthcare services and insurance companies, the sensor unit has to be subjected to regulatory process just like any other medical device. This also applies to smartphones when they are equipped with medical apps [50]. Most of the commercially available end-user IMU-based devices for clinical tests have safety certification but not medical one. The same applies to the variety of customer-grade motion trackers mainly intended for a wellness purpose only. Note that a wearable IMU-based device may not by itself be a medical device with a specific medical purpose, but it may be used to collect information for further diagnosis or therapy management by a medical device or by a medical-grade software [51]. This software may even be a mobile app running on a smartphone [52]. The need for regulatory constraints on wearable IMU-based devices intended for a medical purpose comes from the necessity of ensuring reliable, robust and safe data retrieved from the IMU. The European (Medical Device Regulation) and American (Food and Drug Administration) notified bodies for the certification of medical devices have recently put the focus on wearable sensors by updating their regulations for the design, the pre-clinical validation and the clinical validation of devices that include wearable IMUs [51].