TY - RPRT TI - Attribute metadata: a proposed schema for evaluating federated attributes AU - Grassi, Paul A AU - Lefkovitz, Naomi B AU - Nadeau, Ellen M AU - Galluzzo, Ryan J AU - Dinh, Abhiraj T PY - 2018 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 8112 DO - 10.6028/NIST.IR.8112 ER -