The document describes a usability test conducted with C-saw, a joint expense tracking app. 7 participants tested the app from October 21-27, 2014. The test involved tasks like signing up and pairing with a partner, setting contribution rules, marking credit card transactions as joint expenses, adding a cash expense, redeeming reward points, and rating a partner's wishlist items. Based on participant feedback, the designers proposed changes like simplifying language, adding confirmation steps, and improving the user interface through elements like pop-up dialogs and draggable bars.

1. Test Participants
7 people
1. Sammi
2. Melene
3. Yunji
4. Arie
5. Ivan
6. Sonya
7. Kaity
Oct 21, 2014
Oct 22, 2014
Oct 24, 2014
Oct 26, 2014
Oct 26, 2014
Oct 26, 2014
Oct 27, 2014

2. Scenario
Image you and your partner are living together, but you are not married. Since
you and your partner have income gap and different money concerns, it
comes out some argument about joint expenses. It hurts your relationship.
You want fair money contribution, but you don’t want to split bills every time.
Therefore, you start to use C-saw to monitor you and your partner’s money
contribution by recording joint expenses in an easier way.

3. Task 1
Sign up and pair with your partner
Goal
This is your first time using C-saw, so you want to create an account and pair
with your partner who has not used C-saw yet.
Description
Create an account and pair with your partner

4. Design Sketches
Design Changes
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1
2
23
4
- Changed the task content
- Moved the sign up button to the middle
- Use phone number as user name instead of email address

5. Task 2
Set the Fair Contribution Rule
What kind of money contribution is fair for both of you? The Fair Contribution
Rule setting will help the seesaw to calculate two people’s contribution after re-
cording expenses.
You want to contribute 30% and your partner contributes 70% on the rent; you
want to contribute rests of categories evenly. When you finish the setting, go to
confirm with your partner.
Finish the Fair Contribution Rule setting and confirm with your partnerGoal
Description
Instruction

6. Design Sketches
Design Fixed
Drag
- Don’t need to enter your income
- Named this setting as Fair Contribution Rule
- Changed the contribution from fraction to percentage
- Changed the UI design of how to modify the contribution by dragging the bar
- Renamed confusing categories
- Added a “confirm” action

7. Task 3
Mark two credit card transactions as joint expenses
Since you’ve already synced your credit card to C-saw, you want to mark two of
your credit card transactions as joint expenses.
Mark following two credit card transactions as joint expenses.
Your two joint expenses are:
• Target [category: Shopping]
• Restaurant [category: Eating out]
Goal
Description
Instruction

8. Design Sketches
Design Fixed
Pop-up dialog
1
1
2
2
3
3
4
5
updown
- Deleted the credit card icon on the main page
- Use pop-up dialog to lead the user enter the page
- Removed words which make users confuse, such as “split”
- Use “Mark transactions to joint expense“ instead of “recode a card activity“
- Added the check box (Picture#2)

9. Task 4
Add a cash expense manually
You have a cash expense, so you want to record this expense manually.
Record a cash expense
• Amount: $10.00
• Merchant: Lee’s Cafe
• Category: Eating Out
• Expense (Cash/Check): Cash
Goal
Description
Instruction

10. Design Sketches
Design Fixed
Pop-up dialog
1
2 3
4
5
6
7
updown
- Added a new function: you can record the expenses for your partner
- Need to create a profile page (click the head picture will go to profile page)
- Removed the dashboard which is under the seesaw

11. Task 5
Redeem your love reward points
You got love point from recording joint expenses. You can get reward from your
partner.
Redeem your love point and get a free service ticket from your partnerGoal
Description

12. Design Sketches
Design Fixed
- Put love reward point on the main page
- Changed the content from customizing the app theme to getting reward from partner
- Changed word “coupon“ to “ticket“
- Emphasize the gift box which the user has enough love point to redeem

13. Task 6
Rate partner’s wish list’s item
Your partner needs your opinion! Go to check what your partner want to buy
and let them know what you think.
Give a feedback to your partner’s wish list’s item
Like your partner’s wish list’s item and donate them $5.00
Goal
Description
Instruction

14. Design Sketches
Design Fixed
1
2
- Removed the donate button from the item page
- When user “like“ it, the pop-up dialog will ask them if they want to donate their partner
- User can swipe right to see other items
- Added a check mark on the right-top to let users know they are done.