| Keyword | Definition |
|---|---|
| functionality | whether or not your app does what it is supposed to |
| purpose | what your app is designed to achieve |
| reliability | how frequently your app does what it is supposed to (rather than giving the wrong result) |
| robustness | how good your app is at not crashing, especially when something unexpected happens |
| stakeholders | individuals or groups of people who want to be able to use your app for themselves or their customers |
| target audience | the people who will end up using your app whose age, gender, interests, language and preferences you should take into account |
| usability | how easy to use your app is |
