1. VoiceD Midway High-Fi Prototype
Ayushi Chandaria| Chloe Keilers| Haotian Sun| Lilly Zhou

2. Lilly Z
Ayushi C
Haotian S
Chloe K
OUR TEAM

3. “Learning a new language is now just a phone call away.”
Mission Statement
“Learning a new language is now just a phone call away.”
- VoicEd

4. INtroduction to Problem
Formal language learning focuses on the reading and writing element and hence language learners often struggle to develop confidence in actually speaking the language

5. Solution
VoicED focuses on teaching languages by developing conversational confidence in a fun and safe space

6. OVERVIEW OF THE PRESENTATION
Talk about what features and existing project design we did and did not modify based on the heuristic evaluation feedback
Justifications to the modifications
Talk about our current standing with VoicED project
Challenges we are facing

7. Heuristic Evaluation Results

8. Heuristic Violations of Severity 3 & 4 We Violated
H2 Match Between System and Real World
The header on the main page says “Good morning” in the learning language no matter what time of day it is
H5 Error Prevention
In the calendar menu, when a user is trying to schedule a call, they do not know how to “confirm” their appointment
H2 Match Between System and Real World
The label “call setup” made it unclear that pressing the big phone button was going to start a call right there. User could think they are still in “setup” mode.
H7 Flexibility and Efficiency of Use
Flashcards do not automatically move along even when user gets one right. This would trip up users using voice for flashcards

9. Heuristic Violations of Severity 3 & 4 We Violated
H3 User Control and Freedom
Back button goes all the way back to the home screen instead of just one screen back
H2 Match Between System and Real World
The progress screen doesn’t really make sense. All it says is “overall progress” with a slider bar
S10 Use responses as a way to help users discover what is possible
The system should ask the user more questions instead of making statements during the
conversation, to push the user to practice more vocabulary and grammar
H9 Help Users Recognize, Diagnose and Recover from Errors
If user accidentally clicks on one of the icons at the bottom then click back on the icon user had been using, the progress in the previous section does not save
H2 Match Between System and Real World
Can we reword “current language” in the settings menu? Wasn’t quite sure what “current language” meant / wasn’t a fan of the word choice.

10. Heuristic Violations of Severity 3 & 4 We Violated
H9 Help users recognize, diagnose, and recover from errors
On task 2, the user can eventually start a call without having chosen a set of flashcards, which can lead to errors or frustration, and there seems to be no instructions to avoid this from happening
H2. Match between system and the real world
On the schedule page with the calendar, when the user goes to set a call time, the time does
not indicate whether it is AM or PM. In order to match how a user would schedule a meeting in real life or in other apps, this should be included.
S12 Confirm input intelligently
Users might not know if what they said was correct if they are not looking at the UI. This also applies to the flashcards
S17 Allow users to exit from errors or a mistaken conversation
There is no way to exit from a conversation if you get down the wrong path

11. Overview of Revised Design

12. What we modified and why
The header on the main page now says “Welcome” based language selected
Reason: We choose the word “welcome” so that we do not have to consider what time of the day anymore
There is now a confirm button when a user wants to schedule a phone call
Reason: We fix this error because without a confirm button, VoicED wouldn’t know when a user finish scheduling the call
There is now an instruction that guides users to schedule a phone call
Reason: We fix this error because without an instruction, users, especially those who are new to using VoicED, may experience frustration when they try to set up a call.
Back buttons no longer go all the way back to home screen
Reason: It is a waste of user’s time to take them back to home screen when they do not wish to be in the home screen
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13. What we modified and why
Progress tracker is no longer in the app
Reason: Users may feel discouraged to keep learning if they have practiced so much, but the progress tracker still indicates that their language skills are poor
“Current Language” is now changed to “Select your language”
Reason: The term “current language” is very vague. We fix this error because we want our users to understand what they need to do in the app right a way without giving too much thoughts
Now all progress of flashcards is saved
Reason: If the progress of the flashcards is not saved, users are required to finish a set of flashcards in one setting. Is some cases, users need to redo the same flashcards. This is quite inconvenient and impractical for real-world application.
There is now a “cancel” button in the phone call page
Reason: We fix this error because if a user accidentally makes the phone call, there is no way to exit from a conversation if they get down the wrong path
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14. What we did not modify and why
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Scheduled calls remain on the main page
Although right now when users click on any scheduled calls on the list and nothing shows up, we decided keep it this way. Eventually our app will be able to let users modify the call schedule when they click on it.
The turtle icon will still be there
Reason: an image of a turtle is a universal sign for “slow down”. We think this sign will help a lot more users, including illiterate ones, to understand what is being asked to do than using the word “SLOW”.
David did not allow us to take his picture

15. Task 1
Flashcard

16. Flashcard: Use the flash card to learn the new word.
Flipping animation for Flashcards
User can edit words on the cards
User can delete words on the cards
Multiple choice and Flashcard features combined
Only the right choice would flip the card

17. Task 2
Phone Call

18. Phone Call: Make a phone call with the virtual assistant.
All scheduled calls are recorded
User can delete any schedule calls
Cancel button and End Call button

19. Task 3
Schedule

20. Schedule: set a reminder to make a phone call to you.
The welcome changes based on language selected
Now have “confirm” button
Everything in one page - easy to set up calls
Message that confirms the call has been scheduled

21. Unimplemented Features/Plan

22. -Plan to put an image for the app
Need to create a fully functional phone call conversation feature with VoicED
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_Need more translation of different languages
Need to create a database of words for flashcards
_Need to save user information like names and s
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23. Wizard of
OZ Technique

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We still need to use human voice to represent voice interaction feature of the app for testing.
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25. Hard - CodeD Data Conversation between users and VoicED
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Hard - CodeD Data
Translation of different Languages in the app
David did not allow us to take his picture

26. Some Issues we are Facing
Not sure how to incorporate actual voice interaction in the app
Not sure how to create a calendar from scratch on Xcode for call scheduling
Hence, why we are using a pickerDate element for users to schedule calls

27. Test 2 Like the feature of the phone call
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Like the feature of the phone call
Would like to create own flashcard
Need a tutorial to explain the calendar task

31. Summary Users can now schedule a call on our app and it works 100%
However, we still need to implement the voice interaction part of the app

32. Summary A brief and instructive tutorial is necessary
Let the users know the use case of each task and the importance of each feature
Need to work on the details of each task

33. THANK YOU
Questions?