Scanning and skimming

Differentiate between scanning and skimming reading techniques?

Parameter of Comparison Skimming Scanning
Objective A quick read through to get a bird’s eye view of the content. Thorough lookout for specific information.
Purpose It gives an idea of what is a full text about It helps to find specific information in the text.
Technique It includes reading, introduction, conclusion, headings and subheadings It is looking over the whole text to find particular information.
Benefits A reader can read the maximum text in a limited period To find the required information
Usage To decide whether to read fully or not which they are not familiar with. More concerned with the form of the word because they know what the are looking for