I have to explain what the terms below are within the framework of the study of texts:

- Representation
-Appropriation
-Tranformation
-Textual Intergrity

What does this mean?

"within the framework of the study of texts"

Start here:
http://www.answers.com
Enter each term (watch your spelling!), and then scroll down until you see an entry that addresses the context you need. For example, when I entered "textual integrity" (not intergrity!), I found a link in which this was written:
"Textual integrity: The unity of a text; its coherent use of form and language to produce an integrated whole in terms of meaning and value."

What do you find for the other terms?