Design problems in daily life

Figure 1

This is an oven. We can see from the left picture(Figure 1) that there are some design problems with the user interface.

Problems:
1. Text Problem:
The texts which indicate the temperature levels, time and etc information have gone because of the long-time use and the cleaning.
This will cause serious usability problems that users can not recognise the temperature and time information when they are cooking, especially for the new user.


2. Position Problem:
Since the texts are not clear anymore, it is hard to find which switch controls which stove. There is only one light to show on and off statuses for all the four stoves.

Suggestions:

1. Add a protection cover for texts.
A protection cover should be added for the texts. In that case, the texts would be protected in a good condition, even for long-time use.

2. Add one light for each stove.
As the same as Figure 2, we can add light for each stove to show not only on/off status but also the position of each stove.

Figure 2