DeviceCollectionError Descrptions and sequence of PHASEs?

I am working on automated resolution of failed connections.   Two questions: (1) On this page in the documentation: /docs/nqe/data-model/type_devicecollectionerror/  there is a list of errors but no descriptions.  Can someone provide? (2) I am studying a failure report and the Connect Test Status notes each of these in PHASEs which seems to imply that each is determined in a sequence.  Is there a list of PHASE order for these? 

AUTHENTICATION_FAILED-AUTHENTICATION PHASE
AUTHORIZATION_FAILED-AUTHORIZATION PHASE
CONNECTION_FAILED-CONNECTION PHASE
DEVICE_IS_CHILD_CONTEXT-SETUP PHASE
DEVICE_TYPE_MISMATCH-TYPE_DISCOVERY PHASE
DEVICE_TYPE_UNDETECTED-TYPE_DISCOVERY PHASE
GUEST_MISSING_HOST_RESULTS-SETUP PHASE
JUMP_SERVER_AUTHENTICATION_FAILED-CONNECTION PHASE
JUMP_SERVER_CONNECTION_FAILED-CONNECTION PHASE
OTHER-AUTHORIZATION PHASE
PING_FAILED-CONNECTION PHASE
PORT_REACHABILITY_FAILED-CONNECTION PHASE
PRIV_PASSWORD_ERROR-SETUP PHASE
PROMPT_DISCOVERY_FAILED-SETUP PHASE
SESSION_CLOSED-TYPE_DISCOVERY PHASE
TIMED_OUT-AUTHENTICATION PHASE
TIMED_OUT-AUTHORIZATION PHASE
TIMED_OUT-SETUP PHASE
TIMED_OUT-TYPE_DISCOVERY PHASE