[Platforms] ROMANIA - MULTIPLE SHIPS OF ROMANIA

[Lowry, Roy K]

Hello Neil,

This discussion hinges on whether vocabulary population should be used in imaginative ways to patch limitations in data models, such as having a vocabulary entry that is a list to implement a one-to-many relationship where the data model dictates one-to-one. I have argued vociferously over the past ten years that this is vocabulary abuse and should be avoided and have put a lot of effort into rebuilding metadata where that practice has been used in the past.

In an ideal world any platform code database should have a hull or equivalent as its fundamental entity to which are attached a series of time-limited attributes such as name, platform class, callsign and flag.  The attributes considered important for cruise reporting may be determined from the original ROSCOP form section A02 as ship name (now represented by a ship code) and the platform type.  Callsign was added as an attribute when the ROSCOP was revised into the CSR. My thinking is that if the ship name cannot be elucidated then we need an unambiguous way of expressing that fact, which is what ZZ99 delivers. This is not bucket term usage.

The question you now raise is whether the flag of the platform is an attribute excluded from the original ROSCOP/CSR that we now feel has sufficient significance for it to be included in the CSR data model.  My vote would be ‘no’, but if the majority feel the answer is ‘yes’ then we should be looking to extend the CSR data model rather than implementing a vocabulary quick fix.

Cheers, Roy.

From: Neil Holdsworth [mailto:NeilH at ices.dk]
Sent: 01 November 2010 13:58
To: Dick M.A. Schaap; Lowry, Roy K
Cc: Accessions; platforms at biwebs1.nerc-liv.ac.uk; sdn-tech at seadatanet.org
Subject: RE: [Platforms] ROMANIA - MULTIPLE SHIPS OF ROMANIA

Hi Dick, Roy,

I disagree with your approach, i know this discussion has surfaced in the past and we seem to be at the same sticking point. The ‘unknown’ term is fine if it is in fact the case that no information is known about the vessel, but in these cases something is known and being deliberately overlooked in order to keep from adding new entries. I don’t like using ZZ99 as a ‘bucket code’ to place everything in that doesn’t meet with the simple model approach. This will cause us some headaches in the future with CSR’s if we simply use ZZ99, as the country listed in the CSR is not necessarily the country where the vessel was chartered from – and we will lose this information.

So before you agree to lose this information, i want you to think about whether this is valuable information for someone looking at the historical data to have access to.

Thanks, Neil.



From: Dick M.A. Schaap [mailto:dick at maris.nl]
Sent: 01 November 2010 13:10
To: Lowry, Roy K
Cc: Accessions; platforms at biwebs1.nerc-liv.ac.uk; sdn-tech at seadatanet.org
Subject: Re: [Platforms] ROMANIA - MULTIPLE SHIPS OF ROMANIA

Dear Roy,

I rather go for a general 'Unknown' term in the Vessel vocabulary than starting a whole list of:
MULTIPLE SHIPS OF ROMANIA
MULTIPLE SHIPS OF BULGARIA
etc
etc
etc

So I encourage using the ZZ99 term and not diluting the Vessel directory with all new entries.

Hope all colleagues agree.

Greetings,

Dick M.A. Schaap
SeaDataNet Technical Coordinator


On 01/11/2010 11:44, Lowry, Roy K wrote:
Dear All,

In cases such as these we should simply use the generic ‘unknown’ ship code (ZZ99).  What guarantee do we have that the flags of these ships were Romanian?

I’ve copied this message to the SeaDataNet TTT list so discussion of this issue doesn’t need to wait until December.

Cheers, Roy.

From: platforms-bounces at biwebs1.nerc-liv.ac.uk<mailto:platforms-bounces at biwebs1.nerc-liv.ac.uk> [mailto:platforms-bounces at biwebs1.nerc-liv.ac.uk] On Behalf Of accessions at ices.dk<mailto:accessions at ices.dk>
Sent: 01 November 2010 10:32
To: platforms at biwebs1.nerc-liv.ac.uk<mailto:platforms at biwebs1.nerc-liv.ac.uk>
Subject: [Platforms] ROMANIA - MULTIPLE SHIPS OF ROMANIA


Dear Platform Group,

The code MULTIPLE SHIPS OF ROMANIA from ROMANIA has been added according to the old definitions of "90" and "99" codes for unknown vessels. The topic of handling "unknown" codes has to be resolved by discussions at SeaDataNet at their next technical meeting.

Original Requester : Gabriel Ion (gion at geoecomar.ro<mailto:gion at geoecomar.ro>)

Code : 7390
Name : MULTIPLE SHIPS OF ROMANIA
Flag : ROMANIA - RO (ISO Country Code)
Platform Class : Vessel of opportunity

General Comments:
We named UVOO_1 for any Unknown Vessel Of Opportunity used by GeoEcoMar prior to year 2002
(added by: Gabriel Ion - 20/10/2010 00:00:00)


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