History 

As a user I need to control the satus of order. I expect that orders might have the following statuses:

for process without any interference:

• pending: all new orders waiting for acceptance
• accepted: orders for which anybody accepted for running, and are waiting for start
• in progress: orders started but still running
• completed: production finished, order is closed for change

if any interference occurs:

• declined: user can decide to decline for any reason before starting order
• interrupted: user can decide about temporary interruption after starting and before finishing of order (is possible to restart order)
• abandoned: user can decide about irreversible abandonment of order after starting

Action & flow

Logging 

Each status changing should be logged with informations who and when the action executed