The final version of the prototype, ready for usability testing is quite different than the existing design and also provides some other functionalities. This GUI is more focused on the user and strives to provide user friendliness. The design is intended to be so intuitive that no training is necessary in order to use it, only a short introduction to the program.
The suggested design allows the user to receive advices on webpages, look at details for the provided advice and give feedback, look at the history of advices and the choices associated to them and also to edit them. The user can also read about the system and how it works and adjust some settings that affect how the program reaches the advices based on the user’s preferences.
A simple diagram illustrating the navigation flow of the design and extension can be seen in Figure 5.2. A user can start the navigation either from the main menu or the advice. When navigating from the details you can only go back to the page you came from and not to a new page. In other words, you can not go from history to advice via the details or vice versa.
Figure 5.2: Navigation flow in extension.
5.4. The Design
5.4.1 Main Menu
When opening the proposed GUI for Privacy Advisor the main menu appears con-taining 3 icons; information, settings and history. The interface chosen is plain menu selection as described in Chapter 2.4.1, because it doesn’t require much memoriza-tion and the different choices are presented once the user open the menu.
The graphical elements in the menu are constructed with the intent to be self-explanatory, using simple text and icons to indicate the selections, and buttons with well-known symbols. For example the settings button has a picture of gears and the text ”settings” underneath it. This can be seen for all the choices in Privacy Advisor’s main menu as shown in Figure 5.3.
The figure also shows Privacy Advisor’s main icon in the browser. This icon is always present when the main menu is available.
Figure 5.3: Main menu of Privacy Advisor.
5.4.2 Advices From Privacy Advisor
When the user is provided with an advice from the system, the icon in the browser is changed in accordance to the advice. An advice window can be opened by pressing the icon and the advice is then presented to the user. The user can then accept the advice by pressing a green button with the text ”accept” or reject it by pushing the red button with the text ”reject”. Accepting means that the user agrees with the advice and vice versa.
The structure of the advice given to the user on different webpages is very sim-ilar for the ”good pages” as for the ”bad pages”. This can be seen in Figure 5.4 and Figure 5.5. The advices also provide the user with the opportunity to leave a comment on the decision he or she makes on the page.
The user is also informed in the same way as with the advices when a privacy
Figure 5.4: Advice to the user: reliable page.
Figure 5.5: Advice to the user: unreliable page
policy for some reason can’t be evaluated. The user is still encouraged to provide a decision on the page so the system can still learn from the event.
The user can also choose to see the details on the provided advice. This can be done by pushing the orange button in the advice window, and the details window will appear. The structure of the details page is also similar for all webpages, only the content will change according to the page visited.
The user can then navigate back to the advice by pressing the green return button as shown in Figure 5.6. When the user provides its decision to Privacy Advisor the window changes to the main menu window and the icon is replaced with Privacy Advisor’s main icon.
5.4. The Design
Figure 5.6: Details on advices
5.4.3 Information
From the main menu the user can choose to see the information. The user is then presented with a page describing the main functionality of the program and how the changing icons work. The intention with this page is that it can replace training of the users and give them a brief understanding of how the system works. The information page can be seen in Figure 5.7.
Figure 5.7: The information page in Privacy Advisor.
5.4.4 Settings
The user can also choose to go to the settings from the main menu. The settings allow the user to make adjustments on how the system emphasizes the advices. The user is given the opportunity to determine how many other similar privacy policies the program will use for comparison when determining an advice for the webpage.
The user can also determine the level of privacy that he or she think is acceptable for a good page or a bad page, or in other the limits on when the pages privacy policy is considered ok or not ok.
Finally the user can also determine the weighting on which elements should be considered more important when comparing the privacy policies. The different elements that can we weighted is the type of data the user provide to the webpage, how the data is stored and handled, the reason the webpage gathers the data and who are given access to the information provided. The settings page can be seen in Figure 5.8.
Figure 5.8: The settings page in Privacy Advisor.
5.4.5 History
The last choice in the main menu is the history option. The history page is an overview of the different webpages already evaluated and the decisions associated with them. Again the user is given the option to see the details of the webpages already evaluated (the same details as showed in Figure 5.6) and to change the decisions of the webpages if desired. The list should automatically be updated when