An alphabet model or book worthy of being copied; a model.
a masterwork from which another is created. Scriptoriums acquired their own editions of popular histories or liturgical works by simply copying them from another monastery's holdings.
The exemplar is the book that serves as the guide to copy a new book. This book was used in the monasteries as the master from which to copy new books.
something to be imitated; "an exemplar of success"; "a model of clarity"; "he is the very model of a modern major general"
a piece or body of work that serves as a model for those who work within the paradigm
In assessment, an exemplar is a model of work used to demonstrate the achievement of, or failure to achieve, the criteria or standard for success.
A manuscript from which another is copied. Glossary Glossary (History of Reading)
Exemplar, in the sense developed by philosopher of science Thomas Kuhn, is a well known usage of a scientific theory. According to Kuhn, scientific practice alternates between periods of normal science and extraordinary/revolutionary science. During periods of normalcy, scientists tend to subscribe to a large body of interconnecting knowledge, methods, and assumptions which make up the reigning paradigm (see paradigm shift for more information on Kuhn's model).