Gangway and ship security

FOR-2004-06-22-972 — sikkerhetsforskriften · ISPS Code Part AThe ship security plan shall include measures to prevent unauthorised access to the ship and to control access at the access points. A record of persons on board, and of visitors, is the operative half of that — and the half that is usually a paper book on a windy deck.

The gangway is where the crew list is actually decided, and in most systems it is the one place the system is not. Somebody keeps a paper book, and on Monday somebody in an office types some of it in.

The wall screen is a route with no shell: no sidebar, no page title, no back button. A screen bolted to a bulkhead must stay on this view, and every navigation control is a way for it to end up somewhere else with nobody there to put it back.

• The wall screen. One view, no navigation, signed in once as the gangway device and left that way. It is the only screen in the product deliberately built without a way out.
• Sign off that actually signs off. A red DISEMBARK on the gangway takes the person off the crew list there and then. The list is right within the minute rather than on Monday.
• Visitors sign themselves in. Name, company, who they are visiting, and out again when they leave. Nobody has to stand there operating it for them.
• My pass. A crew member’s own pass on their own phone, which is also how somebody who has forgotten their card gets back aboard without a conversation.
• Access cards. Issued, returned, and lost — as records rather than as a drawer.
• Persons on board, right now. The same records the muster and the daily report read. There is one number for how many people are on this ship and everything uses it.

• The wall — the gangway tablet, no navigation
• Visitors — in, out, and who they came to see
• Access cards — issued, returned, lost
• My pass — on the person’s own phone

The crew list, the muster, the daily report’s head count, the gangway board and the emergency alert all read the same embarkation records. There is no second list that somebody maintains.

That is not an architectural nicety. It is the reason that in an emergency the number on the screen is the number of people.