My thanks to all who contributed. Note that in some places time did not permit me to fully incorporate earlier comments or to research questions that were identified, and I have tried to indicate where changes will be made prior to the preparation of the final version. The paper also still needs some considerable editorial work, and I ask readers to be forgiving of editorial problems. As institutions implement blah blah blah Cut and paste bullets. If you want or if you need them.
Any solution needs to work at a practical level.
It needs to be affordable. Don t forget who your intended audience is so that you can define your terms for them. A subsection on models for access management, discussing the locus of authorization decisions and trust relationships between there resource operator and licensing institution, will probably be added here in the next revision. If you propose a solution, and we hope you are, put it here. Any solution needs to work at a practical level.