how to create user in to jbpm workflow (identity)

[optixpro]

how can i register new user to my workflow application like
register and login form can you give me an example thankyou

[optixpro]

oh i found some

identityService.createGroup("sales-dept");

identityService.createUser("johndoe", "johndoe", "John", "Doe");
identityService.createMembership("johndoe", "sales-dept");

identityService.createUser("joesmoe", "joesmoe", "Joe", "Smoe");
identityService.createMembership("joesmoe", "sales-dept");

if it yes. how can i assign username & password to login as each user thanks