OAM Authenitcation Module StepUI and StepUA meanings and execution sequence

when you are defining Steps during Authentication Module the meaning are following

 StepUI is an abbreviation of User Identification(not User Interface)

StepUA is an abbreviation of User Authentication.


the Steps Orchestration sequence is

StepUI goes first and if that succeeds then StepUA follows.

if StepUI result is failed or error the end result is Failure and it doest goes to StepUA

if StepUI success and StepUA failed or error result is Failure too


how these plug-ins works in OAM.

when user tries to access resource protected by this Authentication Scheme, user is asked to enter username and password. the request goes to OAM. OAM calls  StepUI plugin to locate user in directory, than StepUA plugin is called and verify if username and password entered matches with directory, if yes(both steps succeeds)  user is authenticated.