Screen Scraping
Data Scraping
Screen Scraping is only used for extracting unstructured data.
Data Scraping is only used for extracting structured data.
It stores the scrapped information in a data table.
It stores the scrapped information in a string.
With screen scraping, it is difficult to extract data into Excel or a database.
Data scraping can easily export data to excel or a database
Screen Scraping can collect data by extracting from images and PDF.
Whereas Data Scraping cannot extract from images and  PDF.