A journal back file overlap analysis: Looking back to move forward

Back runs of print journals have traditionally been accessed by binding the individual issues or by replacing them with microfilm. In the online world there is often format duplication as non-current issues of print journals can appear in aggregator databases and other vendor packages. Criteria need to be developed to decide whether a print journal subscription needs to be archived on site in traditional formats or whether the online access for a given title is adequate and sustainable. The Adelphi University Libraries saved $27,664 by developing and applying criteria for relying on online access and to journal back runs.