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Through paper prototyping, we learned that it is important to make previous purchases editable, so we included this functionality in our final design. We tried to give the values the affordance of being editable by putting a dotted box around them. We also included a summary of foods that were in the purchase. This makes the system more visible and reduces the cognitive load on the user because remembering which purchase is which is now recognition rather than recall.
We included the functionality to change the budget right on the budget page rather than in a modal dialog box. This is very beneficial for efficiency reasons, but it allows the user to very easily change goals they have made. For instance, if they find that they're going over the food budget, they can very easily just up the budget to account for it. Hence, in this case, it is arguable that efficiency here is not exactly the best thing.
Recipe Page
Implementation
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