## 4 Results
### Discussion
#### 4.5.2 The Need for a Visual Signifier on a Multi-Touch Tabletop for a Museum Environment  
Signifiers were claimed to be important and beneficial in supporting user interaction on large displays [35]. The study also found that the visual element on the signifier can provide strong cues to guide users in understanding the information displayed and in the right direction. This research study focused on the museum environment as the domain and the multi-touch tabletop as the device platform because the capability of the tabletop as a social device encourages people to enhance their knowledge interestingly. Currently, the technology of multi-touch tabletop has been utilized in various fields including a museum. However, the utilization of the signifier on the large display of the museum environment was not comprehensively explored and understood in terms of their features on the museum signifiers. The study by [PERSON] et al. [27] mentioned that the issue occurs when people tend to attempt moving or maximizing an element that could not be moved or tapped. The users made a wrong interpretation and expectation of interactivity. This happened when users probably do not get a hint or clue from the signifier provided or it appeared ambiguous to them. Furthermore, the study highlighted that interactive displays should not be designed in a manner that is too complicated for consumers to comprehend. Since there is no restriction or specific manner to interact with the interface, it seems important to provide an obvious hint to the users. Therefore, when it comes to the first contact, it is essential to determine whether the user's experience was positive or negative. Another study by [PERSON] et al. [24] specified a limited number of signifiers used which leads to disturbance of the user's movement. This situation happened when the partner felt burdensome to reach a button on her partner's side. The tabletop's size was not that big, but it is not convenient for her to bend a bit to touch the button. The authors also recognize that the space in front of her belongs to her partner and that she did not intend to disturb her partner's movement. Both works mentioned were regarded as this study's reference. Although the works were not specifically focused on museum signifier design on a large screen, understanding the participant's technique and feedback assisted in the process of suggesting museum signifiers to promote large-screen interaction. This is the main purpose of this study is to have a niche focus of study on the museum signifier for the large display. This study has proposed a set of signifiers for a museum environment running on a multi-touch surface. Results show the components that consist of size, label and colour should be included on the museum signifier. The findings show the medium size (100%) rather than the large size (200%) or a small size (50%) of the signifier is said to be appropriately respected with the size of a large display without decreasing user efficiency. This is because the medium size is sufficiently discriminatory but not too distracting to the user's navigation of the interface. In terms of labelling, inserting a label on the signifier prevent confusion and ensure the efficiency of the interaction. Lastly, the finding shows that the contrasting colour of the background and the colour of the icon button affect the user's attention to stay focused on the navigation. These features are thought to be wise to implement for practices within the museum domain. Therefore, the other application in different domains such as healthcare, education, architecture, and others may have a different set of signifiers but the process of finding them can be replicated from this particular study. Overall, the findings show that the proposed set of museum signifiers can improve users' interaction with the multi-touch display. Based on the findings, the proposed set of museum signifiers was perceived as easy to recognize and use on the museum application through the experiment with a high-fidelity prototype.