The term (1) is the way that one text influences another. This can be a (2) such as a quotation or (3) slightly indirect such as u7889, pastiche, (4) or translation. The function and effectiveness of (5) can often depend quite a bit on the reader's prior knowledge and (6) before reading the secondary text; (7) and allusions depend on the reader knowing what is being parodied or alluded to. However, there also are many examples of intertextuality that are either (8) on the part of the author, (9) in the sense that the reader is not required to understand the similarities between texts to fully grasp the significance of the secondary text or (10) when the writer deliberately involves a comparison or association between two or more text.
