"We're not looking at them like 'Ooh you made a mistake,'" Robeson Principal Gerald Morrow said. "we're looking at how we can get them to the next phase."

If the login is unsuccessful, it should rollback operations performed in its login method (the first phase), resetting state, and discarding any credentials acquired for the login principal.

By the Construction phase, with the technical risks effectively mitigated, the principal focus turns to the question "Can we get all the work done by the end of the phase?"