What is the relationship between SFX, CrossRef, and the DOI?
CrossRef (www.crossref.org) is a consortium of primary publishers. CrossRef members use a digital object identifier (DOI; see www.doi.org) to link between their resources- for example, to link from a reference in an article published by one CrossRef member to the full text of the article itself, published by another CrossRef member. Although it offers a persistent linking solution, DOI-based CrossRef linking does not take into account a user’s affiliation and therefore does not provide for context-sensitive linking services. However, when used within the SFX framework, a DOI can deliver such context-sensitive linking services. The OpenURL framework with SFX and the CrossRef framework with DOI are compatible and complementary, and libraries that join CrossRef as affiliates can take full advantage of this synergy. CrossRef library affiliate membership is free of charge.