Prototype III - Analysis Review of Results

After the end of prototype 3, many of the problems found in the previous stages were resolved. To mention a few, inserting data through the keyboard was time-consuming but predictive text reduced the effort needed to search for a product. The shopping list is displayed in the right side of the screen while the customer is using the "Nav Guide" and a the "Help" section was added as it has been previously ignored during the design of the interface.

Ingrid and Goldfinger did not suggest further improvements after experiencing the third prototype which means that the interface has become more usable through the whole prototyping phase. However, this does not necessarily mean that there is no margin for improvement. Testing and evaluation will continue after the final release of our product.