The roster method, also known as the tabular form or list form, is a way of specifying a set by listing its elements between braces, separated by commas. For example, the set of even numbers between 1 and 10 can be written in roster form as {2, 4, 6, 8, 10}. This method is useful for writing out small sets or for specifying sets with distinct elements. However, for larger sets or sets with repeating elements, other methods such as the set-builder notation may be more appropriate.