  
3.4 The lifecycle for addresses and data management
3.4.1 Address creation
The interest of each of the Acacia partners starts at a different point in the address creation process. This is shown in Table 3. Other address users are also interested in addresses across the range of stages.
Table 3 Interest in the address creation process
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Address-related activity
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Acacia partner
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Real-world activity
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Address activity
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Local Gov't
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Royal Mail
|
Land Registry
|
Ordnance Survey
|
Valuation Office
|
land transaction
|
plot address
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|
|
land registration
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|
land valuation
|
outline planning
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|
planning process
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|
|
|
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design approval
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|
add plot address to LLPG
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|
|
recorded
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|
|
|
provisional address
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naming & numbering
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add to ‘Not yet built’ file
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|
|
|
construction starts
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|
|
|
|
provisional survey (major developments)
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|
|
|
address finalisation & postcode assignment
|
naming & numbering
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postcode assigned
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|
|
|
construction completion
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|
building control
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|
|
final survey
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|
occupancy starts
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|
taxation etc
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add address to PAF
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ownership transaction
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add to ADDRESS-POINT
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valuation
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The different points in the address lifecycle at which the various partners interest commences, means that it is very difficult if not impossible to keep their different address datasets synchronised.
3.4.2 Address change
Change to addresses can occur in many ways. Some of these changes will be corrections rather than real-world changes, for example the correction of spelling in a recorded address.
The main types of address change are:
- of name or number,
- of classification (e.g. from residential to commercial),
- of use,
- of owner,
- of occupancy,
- of recorded position (e.g. due to positional accuracy improvement),
- of postcode.
The interest of each Acacia partner in each type of change is shown in Table 4.
Table 4. Interest of Acacia partners in address changes
Change
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Local government
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Valuation Office
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Land Registry
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Ordnance Survey
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Royal Mail
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name or number
|
X
|
X
|
X
|
X
|
X
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classification
|
X
|
X
|
|
X
|
|
use
|
X
|
X
|
|
X
|
|
owner
|
X
|
X
|
X
|
|
|
occupancy
|
X
|
X
|
|
|
|
position
|
X
|
X
|
X
|
X
|
|
postcode
|
X
|
X
|
X
|
|
X
|
3.4.3 Address deletion
When an object is de-commissioned, most organisations archive the address details, as they will have an influence on future developments. The exception is Royal Mail, who only keep a record of current postal addresses.
3.5 Proposed management model
3.5.1 Governance
To be effective, the infrastructure will require direction, regulation and monitoring from the centre, by a government body independent of the data suppliers but working closely in partnership with them. This body should have ownership of the infrastructure and be part of (or directly accountable to) a government department with a remit across a range of areas.
The data suppliers will need to be obliged, subject to national agreements on the commercial arrangements, to supply data to the national infrastructure and other partner suppliers.
The data suppliers are mostly key users of the data as well. The other main users will be other central government departments and agencies, emergency services, utilities and commercial organisations. These will need to be consulted on a regular basis through a wider user group.
3.5.2 Management
In order for the joined-up infrastructure to be successful, it will have to be actively managed. Leaving things to the individual partners on a goodwill basis will not be sufficient. Roles and responsibilities will need to be defined.
An Implementation Authority, at the organisational level, will be required to manage the infrastructure. They will be responsible for day-to-day monitoring of the update processes and data quality control. They will carry out any data matching between the source datasets, and ensure that change information is disseminated to the partners.
3.5.3 Business processes
In the longer-term, the update process needs to be re-engineered, to remove the current duplication. Each task should be performed by a single organisation, and sent to a central facility for dissemination. A simplified process is shown in figure 8.

Figure 8. Idealised update process.
The introduction of a National Address Infrastructure may necessitate the re-engineering of the address creation processes and traditional roles and responsibilities for certain Acacia stakeholders.
The responsibility for each aspect might be as follows:
name/number
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local authority
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classification
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VOA
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use
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local authority
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owner
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Land Registry
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occupancy
|
local authority
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position
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Ordnance Survey
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postcode
|
Royal Mail
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In the shorter term, there will still be multiple sources of change that have to be resolved. The resolution could be achieved using the responsibilities listed above.   
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