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Heuristic evaluation showed that firstly, the description of the technique was hard for understanding, so we decreased the amount of text and made it better for reading (by adding white spacing for example). Secondly, earlier we had an additional page for choosing the level of the technique. During the paper prototype testing, the users complained about big number of steps before the start of training. One of heuristic evaluators suggested making a drop-down menu instead of additional page. So, we implemented it:
Implementation
In addition to the interface implementation, we had two internal procedures to be implemented:
- Search algorithm. Both the main page and the search page contains the search bar. It is aimed on searching within the list of techniques/pictures/artists to find an appropriate technique. The search was implemented in JavaScript. When the user tries to search for a certain phrase, the search script reads the list of techniques and files with their descriptions and outputs the techniques which has the search phrase in their description. The search itself was implemented as a substring comparison.
- Image processing for giving feedback to the user
- Content. The main idea of our project is to allow users to learn new techniques by redrawing pictures/paintings. That is why it is essential to have content to redraw. We implemented the techniques storage in a structured way, so that the process of adding a new technique will take only a couple of minutes. After adding a technique, the search script will take it into account and show it in the search results during the next search attempt.