Printed Material
So far we have covered annotations generated by crowdsourcing or academic projects but another popular use case is working with auto generated annotations for printed material. You can generate annotations from OCR files like ALTO using a XSLT here. Once you have done the conversion you can link the annotations to the manifest and also implement the search API. Below is an example from North Carolina State University (NCSU) showing a Newspaper which has the search API in the Universal Viewer:
It is also possible to view the linked annotations in Mirador:
And you can imagine importing these annotations to an annotation store and setting up a project to correct OCR.