Faculties and centres
A graph or graphic representation is a type of representation of data, usually numerical, using graphic resources (lines, vectors, surfaces or symbols), so that the mathematical relationship or statistical correlation between them is visually manifested.
Because charts are visual elements, we must take into account a series of considerations such as the use of color or the description thereof, so that they are accessible by as many people as possible.
The charts that we insert in our documents should be simple, without abusing complex groupings or a large amount of data. If this is the case, it is recommended to divide large charts into smaller ones. In addition, it is not recommended to use several charts within a single image since the resulting descriptions will be more complex and confusing for users who have vision problems.
To insert a chart in Word we will follow these steps:
As we have seen in the previous section, the charts are images. Although Word charts are interactive and allow us to know data by placing the mouse pointer over the parts of the chart or legends, these elements are not accessible to people who use a screen reader, such as blind people. So, we must describe the data that is shown in the charts.
We must include a description in the charts of our documents. This description, as we explained in the section on images and non-textual elements , should describe the content of the chart. Just imagine that you are describing the chart to another person by phone.
If we had a pie-type chart with the distribution of students by gender, the alternative text would be the data. That is: 37% of men and 67% of women .
To include the alternative text to a Chart in Word, we will follow these steps:
If it is an interactive chart:
If the graph is in image format:
In cases where we have included a very extensive description, it is advisable to enter a short description in the Title field.
As we saw in the section of Tables and pictures captions , it is advisable to include a simple and descriptive title with the purpose of a chart. To include chart title in Word we follow these steps:
In interactive charts inserted from Word, we must enter the chart’s caption in the corresponding legend. It is the only field of the chart that is accessible to people who use a screen reader since the other legends or charts shapes are not accessible.
When working with charts we should not transmit information only through color, since there are people who have difficulty distinguishing colors, such as people with color blindness or low vision. For this reason, we must transmit the information using other elements and not exclusively with color.
Let’s think that we have inserted a pie-type Word chart to show the percentage of students by gender. The chart would be as follows:
We can see that the information is transmitted only through color, that is: We have a couple of legends that indicate that the colour red refers to the percentage of men and the color blue to the percentage of women. But ... What if the person can not distinguish the colors? They cannot relate to which part of the chart each legend refers and, therefore, they will not be able to understand the data.
In the following chart, however, in addition to transmitting information through color, we can see the data directly inside of the parts of the charts, so the chart will now be accessible.
To facilitate the task, Word brings a series of predefined styles for each type of chart, which we can apply with the following steps: