4. Experiment 2-improved episodic memory visualisation interface
The results and feedback from experiment 1 informed the improvement of the interface and the re-evaluation through an iterative process. The most common type of comments concerned the size and quality of the images. Participants wanted the photos to be larger and/or being able to zoom in on parts of the images to answer better the questions. Moreover, timestamps were suggested. According to the results and the open-ended responses from the initial study, those are the features that the improved memory tool will focus on.
To address the feedback from the initial study, the interface now includes a new screen that comes up every time a picture gets tapped on. This new screen contains a full size image, a short description of what the user is doing and a time stamp indicating when the photograph has been taken. Moreover, since the addition of a new screen increases the navigation hierarchy, in order to ease the navigation between screens a big and clear back button was added, which takes the interface to the previous screen. The improved episodic memory visualisation interface can be seen in Figures 5 and 6.
As in experiment 1, in experiment 2 participants were given the interface with an interaction history that they used to answer questions.