Figure 4
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F2192-113X-2-9/MediaObjects/13677_2012_Article_29_Fig4_HTML.jpg)
Evidence and chains for trust judgment on a cloud broker. Trust placed in a cloud broker is based on one or more of: (1) accreditation; (2) policy compliance; (3) certified attributes; (4) self-assessment and information revealing, which is based on the trust placed in this broker with respect to telling truth; (5) reputation calculated or recommendation made by another trusted broker.