Evaluation
The evaluation
In order to evaluate our prototypes, we used the Heuristic Evaluation as well as user testing.
Our main goal was to come up with user-friendly features that enabled users to get all kind of information, from the prediction line on the graph to a quick presentation on how to use Renewables.AI with the help of our chatbox.
After the finishing the first ptotoype, we saw some flaws which we later fixed, as they are presented in the Heuristic Evaluation
| Problem no. | Location&Description | Heuristic | Solution | Severity(0-4) |
|---|---|---|---|---|
| 1 | Graph prediction - user could not show/hide the "actual revenue" line if he/she wanted | User control and freedom | Added a "remove" button | 2 |
| 2 | Graph prediction - different graphs for 1 day/1 week/1 month prediction | Consistency and standards | Created one graph with buttons for each option | 3 |
| 3 | The chatbox could not explain to new users how Renewables.AI works | Flexibility and efficiency of use | Incorporated this option into the chatbox | 2 |
| 4 | Graph prediction - the user feedback for the timeline selector for the graph timeframe was that it's confusing and they would prefer simple buttons | Consistency and standards | In a later iteration we removed the timeline selector feature and replaced it with a group of buttons | 3 |
We wanted to know if both our prototypes were easy to use and quick to learn for both familiar and unfamiliar users. We got feedback from them, as stated in the charts below.