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Planned changes to fulfilment

Additional changes to our order processes

In parallel with the changes to the announcement of a change to the OS MasterMap schema made in May 2014, we are also looking to improve the way that our customers receive data.

These changes will apply to customer orders of:

  • OS MasterMap Topography Layer
  • OS MasterMap ITN – Road Network
  • OS MasterMap ITN – Road Network with Road Routing Information (RRI).

These changes will come in to effect as of autumn 2015 and are detailed below.

1. Changes to Ancillary Files

Current OS MasterMap orders have the following structure:

Data supplied via DVD:

data folder
doc folder
1234567-summary.gml
Care_of_Media.pdf
Disc_Contents.txt
Label Information.txt
mmfeedback.htm
mmfeedback.txt
newoslogo.jpg
exe
Order_Index.txt
readme.txt

Data currently supplied via FTP:

1234567 folder
1234567-details.txt
1234567-directory.txt
1234567-summary.gml
Care_of_Media.pdf
mmfeedback.htm
mmfeedback.txt
newoslogo.jpg
readme.txt
ov folder
1234567-OV9999-5c1307.gz

From autumn 2015, this file structure will be rationalised and simplified to make it easier for our customers to identify the information they require.

New DVD supply structure as of autumn 2015:

data folder
doc folder
1234567-summary.gml
Label Information.txt
Order_Details.txt

New FTP supply structure as of May 2015:

1234567 folder
Order_Details.txt
1234567-summary.gml
ov folder
1234567-OV9999.gz

1.1 Removal of Superfluous Files

We have taken the opportunity to stop supply of the following superfluous files:

  • Care_of_Media.pdf
  • mmfeedback.txt
  • mmfeedback.htm
  • newoslogo.jpg
  • Readme.txt

The information currently contained within the Readme.txt file will now be found on the Ordnance Survey website under the relevant product pages.

1.2 Simplification of the order details information

We have combined the files giving order details to make it easier for customers to manage their data. This single file will be named consistently and, at the order level, contain the same details whether your order is delivered on DVD or via the FTP server.

For delivery via DVD:

The ‘Order Index’ and ‘Disc Contents’ files currently supplied will be combined into a single ‘Order Details’ text file. The Order Details file, gives high level order details such as the on-line reference and order number and will be identical on each DVD applicable to the order. It also lists all the data files delivered in your order and identifies which disc the files are on. For geographically chunked orders there will no longer be a list of chunks which are not supplied.

For delivery via FTP :

This single new file will replace the ‘details’ and ‘directory’ files currently supplied.

The Order Details file, gives high level order details such as the on-line reference and order number and lists all the data files delivered with your order. For geographically chunked orders there will no longer be a list of chunks which are not supplied.

1.3 Files unchanged

The GML summary file will remain unchanged, as will the label information file (provided for DVD orders only).

2. Consistent data file naming

To make it easier for our customers to manage our data, we are going to change the systems to ensure we apply consistent data file naming.

For ‘Geographically’ chunked data, we will be removing the items in red which are; chunk size, complete, incomplete or empty and the unique counter from the file extension:

1462490-HP4500-5c3124.gz

So the new file name will include just order number and tile reference:

1462490-HP4500.gz

For ‘Non-geographic’ chunked data, we will be removing chunk size from the file extension:

1462490-000001-30.gz

So the new file name will include just order number and tile reference:

1462490-000001.gz.

3. Feature Validation Data Set (FVDS)

The Feature Validation Data Set (FVDS) enables OS MasterMap users to verify their data holding. It is a list of TOIDs with their corresponding version number and version date. At the moment, an FVDS can be selected when choosing the ‘future update’ options as part of the initial order process, and if it is chosen it is delivered as part of the data order itself. From autumn 2015 the way that customers select and then manage this option in the future will be changing.

If you are a customer that currently receives a feature validation data set (FVDS) with your ‘Change Only Update’ order, you will now receive this data as a separate order which will be delivered at the same time as your data order.

For new customers, when you initially take out your data contract you will be asked if you wish to receive an FVDS supply at that time, and if you choose this then a separate contract and order for FVDS will be set up.

As is the case now, any existing customers that wish to receive an FVDS for their existing order will need to contact us to arrange this.

There will be no changes to the actual data supplied other than the data file name changes already detailed in the above section on ‘consistent data file naming’.

4. Fixed Grid

Your OSMM data has always been fulfilled by using a ‘floating grid’ which was controlled by your area of interest (AOI) polygon. If you never changed your polygon your data has always been supplied with the same 1km references. However if you expanded your AOI or ordered a subset of the data it would have been very likely that your data supplied then would have had a different set of 1 km references. This has long been a source of confusion for some customers.

Ordnance Survey is now moving to a ‘fixed grid’ which removes this issue and confusion. However if you were one of those few customers that had never had your data supplied with different references then the first time you receive your data in the new system your 1km references will change. This should not be an issue for you and from then on the 1km references will not change.

If you receive Managed Great Britain Dataset(s) you will notice no grid change or alterations to your current supply.

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