In a day and age where big data is common, we would like to reduce the number of data to a manageable number of factors or principal components. If you are overwhelmed by the information given to you, the chances are that many of these information will be correlated. In that case, you can reducing the number of factors or principal components that you can work with should be the main solution.

There are many tools that can perform factor analysis. Here are videos using factor with different software tools.