IFD:Nutzerstudien WiSe1314/HeuristicAnalysisSecurity - Revision history

Nioerd at 14:00, 23 January 2014

2014-01-23T14:00:16Z

← Older revision		Revision as of 14:00, 23 January 2014
Line 39:		Line 39:

	* The touch screen doesn`t work sometimes, when clicking on “Add a contact”.		* The touch screen doesn`t work sometimes, when clicking on “Add a contact”.

			* Most elements inside ChatSecure are clickable. For example the status button or the current status message. The name of the chat partner is underlined. For the first time I have thought it is clickable and tried it. This means I expected a reaction on my click, like the other interface elements would do. Later a figured out that this marks the current chat-tab.

			* If you open up the context menu you will see an exit button at the bottom. In my opinion this should not be there. Instead this functionality should be provided by the home button.

			* The settings menu is hidden behind the three points. Today most mobile device users expect some kind of gear-wheel or screw-wrench. Maybe it would be better to change the three points into something like that. If the three points are a place-holder for an collection of options it should be more clear what is meant with this symbol.

	== Error prevention ==		== Error prevention ==
Line 49:		Line 55:

	[[File:Screenshot_2014-01-09-11-16-06.png]]		[[File:Screenshot_2014-01-09-11-16-06.png]]

			* The explanation of the dialog says you should enter the email address of the person you would add. This could my be confusing because people could think they could add all people with an email address.

			* If one accidentally touches the area outside the dialog box the process of adding a contact is stopped. The annoying point is that one has to type in the data again if you want to add the contact.

	== Recognizing rather than recall ==		== Recognizing rather than recall ==
Line 89:		Line 99:

	* I have not received any error message from the app. Therefore, no statement about the intelligibility of the message and the quality of the solution paths are taken.		* I have not received any error message from the app. Therefore, no statement about the intelligibility of the message and the quality of the solution paths are taken.

			* Error messages very technical and not saying in former versions. Details are fine if one knows how to deal with, but it would be better to give a description of the problem and add an detail Button to see the exact problem.

	== Help and dokumentation ==		== Help and dokumentation ==

	* A help is not available in the menu. This would be very helpful for "beginners". E.g. the traffic light system for the security of the message isn’t immediately clear.		* A help is not available in the menu. This would be very helpful for "beginners". E.g. the traffic light system for the security of the message isn’t immediately clear. It would be nice to have a short tutorial explaining the background for the user. This should easily explain what is OTR, what is a fingerprint and maybe some reasons why one should use the encryption. It could also ne nice to have a short Q/A part where some basic questions like 'Where did i find ...' or 'Is this possible ...' are answered.

Xicu1652: /* Aesthetic and minimalist design */

2014-01-22T16:37:58Z

Aesthetic and minimalist design

← Older revision		Revision as of 16:37, 22 January 2014
Line 75:		Line 75:

	* In the top status bar of the phone, a corresponding icon is displayed in case of a new message. This icon is useful if the app is not open yet. However, the Chat Secure icon is also shown in the status bar permanently if the app is running. That means if you get a message you have 2 icons of Chat Secure in the status bar. Will there be more icons of WhatsApp etc. the bar will be full very quickly. Therefore the always visible Chat Secure icon should be removed.		* In the top status bar of the phone, a corresponding icon is displayed in case of a new message. This icon is useful if the app is not open yet. However, the Chat Secure icon is also shown in the status bar permanently if the app is running. That means if you get a message you have 2 icons of Chat Secure in the status bar. Will there be more icons of WhatsApp etc. the bar will be full very quickly. Therefore the always visible Chat Secure icon should be removed.

			* After typing in the name in the contact box, I wanted to click on “invite”. For that I clicked in the red box below, because I intuitively thought, I would come to the interface before. Maybe it is better to place the “invite”-button somewhere in the red box, because you won`t have to click the keypad away then.

			[[File:lkhklhljkh.jpg \| 200px]]

			the "invite" button is unseen

			[[File:aöövoi.jpg \| 200px]]

			the interface before

	== Help users recognize, diagnose, and recover from errors ==		== Help users recognize, diagnose, and recover from errors ==

Xicu1652: /* Flexibility and efficiency of use */

2014-01-22T16:36:50Z

Flexibility and efficiency of use

← Older revision		Revision as of 16:36, 22 January 2014
Line 61:		Line 61:

	[[File:Screenshot_2014-01-15-11-35-15.png]]		[[File:Screenshot_2014-01-15-11-35-15.png]]

			* I didn`t understand the box that plopped out, when I wanted to import the OTR keystore. (And don`t know what it is for, by the way.) It was only open for a few seconds, so I couldn`t read all of it. After I read it 3 times, I still didn`t found this file, the window wanted to lead me to.

			[[File:aaaaaaaaaaaaaaaaaaaaaa.jpg \| 200px]]

	== Aesthetic and minimalist design ==		== Aesthetic and minimalist design ==

Xicu1652: /* Recognizing rather than recall */

2014-01-22T16:34:47Z

Recognizing rather than recall

← Older revision		Revision as of 16:34, 22 January 2014
Line 53:		Line 53:

	* Open the contact view from a chat window (swipe to the left) is not intuitive. Instead of the way to swipe to the previous and next contact, you could always put a link to the contact list.		* Open the contact view from a chat window (swipe to the left) is not intuitive. Instead of the way to swipe to the previous and next contact, you could always put a link to the contact list.

			* I didn’t know my messages weren’t sent at all. My message window was all empty. I couldn`t see that I did not send my friend something nor could I see her messages.

	== Flexibility and efficiency of use ==		== Flexibility and efficiency of use ==

Xicu1652: /* Consistency and standards */

2014-01-22T16:33:32Z

Consistency and standards

← Older revision		Revision as of 16:33, 22 January 2014
Line 37:		Line 37:

	* If you click on a message the window to "Verify" open. This isn’t expected by the users because this action should come only by clicking the lock. Moreover, it leads to confusion when the message is already marked as green but still opens a window for verification.		* If you click on a message the window to "Verify" open. This isn’t expected by the users because this action should come only by clicking the lock. Moreover, it leads to confusion when the message is already marked as green but still opens a window for verification.

			* The touch screen doesn`t work sometimes, when clicking on “Add a contact”.

	== Error prevention ==		== Error prevention ==

Xicu1652: /* Match between system and the real world */

2014-01-22T16:32:49Z

Match between system and the real world

← Older revision		Revision as of 16:32, 22 January 2014
Line 15:		Line 15:

	* Clicking the lock with red cross shows "Start OTR". Maybe some unskilled users will not know that “OTR” means Off-the-Record Messaging. So they don’t know, if OTR is about the encryption or not.		* Clicking the lock with red cross shows "Start OTR". Maybe some unskilled users will not know that “OTR” means Off-the-Record Messaging. So they don’t know, if OTR is about the encryption or not.

			* I only found the “import OTR keystore”-button just by accident! I also don`t know why I should import it, because the OTR seems to work even without the import.

	* Use of traffic light colors (red, yellow, green) is known to the user from the real world. However, for first time users may not be immediately clear what color means what.		* Use of traffic light colors (red, yellow, green) is known to the user from the real world. However, for first time users may not be immediately clear what color means what.

Xicu1652: /* Visibility of system status */

2014-01-22T16:30:49Z

Visibility of system status

← Older revision		Revision as of 16:30, 22 January 2014
Line 10:		Line 10:
	* When I added a contact, he showed up in the contact list twice. I deleted one of them… later “both” accounts were gone, so I fully deleted the contact by accident.		* When I added a contact, he showed up in the contact list twice. I deleted one of them… later “both” accounts were gone, so I fully deleted the contact by accident.

	[[F.jpg \| 200px ]]		[[File:F.jpg \| 200px ]]

	== Match between system and the real world ==		== Match between system and the real world ==

Xicu1652: /* Visibility of system status */

2014-01-22T16:30:20Z

Visibility of system status

← Older revision		Revision as of 16:30, 22 January 2014
Line 9:		Line 9:

	* When I added a contact, he showed up in the contact list twice. I deleted one of them… later “both” accounts were gone, so I fully deleted the contact by accident.		* When I added a contact, he showed up in the contact list twice. I deleted one of them… later “both” accounts were gone, so I fully deleted the contact by accident.

			[[F.jpg \| 200px ]]

	== Match between system and the real world ==		== Match between system and the real world ==

Xicu1652: /* Visibility of system status */

2014-01-22T16:11:52Z

Visibility of system status

← Older revision		Revision as of 16:11, 22 January 2014
Line 5:		Line 5:

	* After "verify Key" appears at once a green marker at the message, but the lock is still showing up with a yellow question mark. The contact bar at the top is also shown in yellow. Thus the user does not know the actually state.		* After "verify Key" appears at once a green marker at the message, but the lock is still showing up with a yellow question mark. The contact bar at the top is also shown in yellow. Thus the user does not know the actually state.

			* The lock kept open, when I clicked on “start OTR”, so it didn`t work and I don`t even know why. (Description box needed!) I later realized that it only worked when the person I was sending the message to was online. I would like to send a secure message to an offline person, but don`t know how. Need I download the OTR Keystore then? This friend also didn`t get my messages at all and I didn`t know that, because no error sign occurred. (See “error prevention”)

			* When I added a contact, he showed up in the contact list twice. I deleted one of them… later “both” accounts were gone, so I fully deleted the contact by accident.

	== Match between system and the real world ==		== Match between system and the real world ==

AnjaR at 14:14, 17 January 2014

2014-01-17T14:14:38Z

@@ Line 1: / Line 1: @@
 == Visibility of system status ==
-== Match between system and the real world==
+* When you click on the lock and afterwards on "Start OTR”, a charging circle appears on the left side of the lock. This is helpful to show the user that something happens and the app is working. If the contact is offline the loading circle "boosts" permanent and it happens nothing. Thus the user gets no information what’s happens now.
 == User control and freedom==
 == Consistency and standards ==
 == Error prevention ==
-==  Recognition rather than recall==
-==  Flexibility and efficiency of use==
+* If you have already opened the keyboard to write a message and then goes back to the contact view, the keyboard is still open. Typing some characters and they are displayed in an over layer. (Screenshot) If you now close the keyboard this text is still be shown, even if you move to another contact. The keyboard should therefore be closed automatically when you go back to the contact list in order to avoid such errors.
-==  Aesthetic and minimalist design==
-== Help users recognize, diagnose, and recover from errors==
+[[File:Screenshot_2014-01-09-11-05-47.png]]          [[File:Screenshot_2014-01-09-11-06-17.png]]
-== Help and documentation ==