Final answer:
In Tableau Desktop, imported dataset fields are categorized as Dimensions and Measures, with Dimensions providing data segmentation and Measures allowing quantitative analysis. Tables are used for a linear data presentation, while the choice of graph type depends on the data and the intended insight to be communicated.
Step-by-step explanation:
After importing a dataset into Tableau Desktop, all fields are broken down into Dimensions and Measures. Dimensions are categorical fields and are used to segment and categorize data, which then determines the level of detail in the visualization. On the other hand, Measures are numerical fields that can be aggregated and used to perform quantitative analysis.
Tables help present data in a linear way making it easy to locate specific data points. Graphs, on the other hand, offer a visual perspective on the data and include many decisions, such as the division of data, selection of time frame, and axis scales, which can influence how the data is interpreted. When choosing the type of graph to use, consider the data and the message that needs to be conveyed.
For instance, a pie chart is suitable for showing proportions within a whole, a bar chart is appropriate for comparing different groups, and a line graph is ideal for illustrating trends over time.