NIST releases Evaluation of Cloud Computing Services Based on NIST SP 800-145 (NIST SP 500-322), a report that provides clarification for (1) qualifying a given computing capability as a cloud service by determining if it aligns with the NIST definition of cloud computing; and (2) categorizing a cloud service according to the most appropriate service model Software as a Service (SaaS), Platform as a Service, (PaaS), and Infrastructure as a Service (IaaS).