Evaluating Demand-Driven Acquisitions

Preface

Demand-driven acquisitions (DDA) describes any acquisitions process that is driven by the desires of patrons or their usage of materials rather than predictive processes like package purchases and librarian selection. DDA is commonly used to refer to the catalog-integrated ebook programs that emerged with major vendors clustered around 2010–11, but the idea of DDA can be applied to many workflows that examine usage to inform purchasing across all formats including digital and physical monographs, serials, media materials, and other resources. For clarity, this book will use the abbreviation DDA to refer to all of these processes, though patron-driven acquisitions (PDA), purchase on demand, patron-initiated purchasing, and customer-based ...