This thesis delves into the development of a project that aims to boost the awareness and willingness of TU Delft's research staff to share laptop data, needed to promote the further adoption of the Circular Economy (CE) in the Information and Communication Technology (ICT) domain. The project navigates the intricate landscape of data privacy challenges, particularly focusing on laptop hardware and organizational device management, with the ultimate goal of supporting AI processes such as predictive maintenance that require laptop-specific data, which can be categorized as personal data.
The project employs the Agile methodology and the Double Diamond Model to iteratively design user interfaces that visually articulate informed consent for ICT (i.e. laptop) data sharing for CE processes, such as laptop’s repair, reuse, and return. The main objective is to help cultivate a more sustainable ICT service in TU Delft by enhancing CE data sharing transparency and offering incentives for informed consent with the User Interface (UI) design. The design of the user interface aims to simplify the comprehension of consent for data sharing, bring more transparency, and raise awareness about data privacy. This approach is expected to motivate the research staff to actively participate in data sharing, thereby contributing to sustainability efforts within the organization. The thesis culminates with the presentation of key findings and potential avenues for future exploration and research, providing valuable insights into the interplay of data privacy, user experience, and sustainability within ICT services. ... Read more

BACKGROUND: The contrast between a bright computer screen and a dark ambient environment may influence comfort of the users, especially on their eyes. OBJECTIVE: The objective of this research is to identify the optimal desktop lighting for the comfortable use of the computer screen in a dark environment. METHODS: An experiment was designed where seven illumination setups were introduced for the users to perform their leisure tasks on a computer screen. Fifteen healthy subjects participated in the experiments. During each session, durations of the eye blinks, fixations and saccades of the user were recorded by an eye tracker. His/her neck and trunk movements were recorded by a motion tracking system as well. The comfort/discomfort questionnaire, localized postural discomfort questionnaire, NASA task load index and computer user questionnaire were used to record the overall comfort/discomfort, the local perceived physical discomfort, the cognitive workload, and general/eye health problems, respectively. RESULTS: Subjective and objective measurement results indicated that users felt more comfortable with high intensity warm lights using a computer screen. We also identified that the eye fixation durations, as well as the scores of two questions in the computer user questionnaire, have significant negative correlations with comfort. On the other side, the durations of blinks and the scores of three questions in the computer user questionnaire, were significantly correlated with discomfort. CONCLUSION: The warm (3000K) and high intensity (1500 lux) light reduced the visual and cognitive fatigue of the user and therefore improve the comfort of the user during the use of a computer screen. ... Read more