Your results contain 8 solutions with the following criteria :

Identity authentication, federation and management
Solution Smile rating Users rating Popularity
CAS CAS 4.0 Smile No rating
41%   Popularity on the site
FederID No rating No rating
9%   Popularity on the site
LemonLDAP::NG LemonLDAP::NG 2.7 Smile 3.9 Visitors
34%   Popularity on the site
LinOTP LinOTP 3.5 Smile 3.0 Visitors
24%   Popularity on the site
OpenAM OpenAM 3.0 Smile 4.8 Visitors
55%   Popularity on the site
OpenSSO No rating 1.0 Visitors
15%   Popularity on the site
Shibboleth Shibboleth 2.3 Smile No rating
19%   Popularity on the site
WSO2 Identity Server WSO2 Identity Server 3.8 Smile No rating
0%   Popularity on the site