Direct naar content

You are here:

  1. Home
  2. Algorithms

Please note: The algorithm descriptions in English have been automatically translated. Errors may have been introduced in this process. For the original descriptions, go to the Dutch version of the Algorithm Register.

Automatic verification of removals

Municipality of Nijmegen

Everyone residing lawfully in the Netherlands must be registered in the Basisregistratie Personen (BRP). The algorithm is used to update the most changing piece of data in the BRP, namely: the address. The algorithm signals situations where citizens request a change of address: the declaration of relocation.

Last change on 20th of February 2025, at 15:31 (CET) | Publication Standard 1.0
Publication category
Impactful algorithms
Impact assessment
Field not filled in.
Status
In use

General information

Theme

Organisation and business operations

Begin date

2022-12

Contact information

gemeente@nijmegen.nl

Responsible use

Goal and impact

Municipalities are responsible for registering people in the Basic Registration of Persons (BRP). The municipality uses this data to decide who can receive benefits or subsidies, for example. Other government organisations also use BRP data. It is therefore very important that the BRP data are correct.


The algorithm poses little risk. The algorithm gives an indication of a relocation declaration that may be wrong. There can be various reasons for this. For example, because residents register at the wrong address by accident or deliberately. An employee with knowledge of this subject then assesses the declaration of relocation.

Considerations

The algorithm is used because, according to the law, the quality of the BRP must be good. A check takes place when a higher-risk move is made. By using the algorithm, we ensure fewer errors and thus less work afterwards. Thus, we ensure that we serve residents better. There are also less costs to society this way.

Human intervention

The algorithm only signals possible errors in the address. Upon a signal from the algorithm, an official checks the move. The official reviews the move notification and contacts the moving person if necessary.

Risk management

The situations the algorithm checks for are legally tested. The privacy of residents is also protected: the algorithm can only use certain data.


Each indicator is in a legal framework and has been tested accordingly; protection of privacy data is guaranteed in this algorithm. Here, it is crystal-clear which data can be used and that it cannot be accessed after the algorithm is deployed.

Legal basis

BRP Act: As a municipality, we have a duty to ensure up-to-date, accurate and reliable registration of residents' personal data in the BRP.

Links to legal bases

Wet BRP: https://wetten.overheid.nl/BWBR0033715/2023-10-01/0

Link to Processing Index

https://www.nijmegen.nl/verwerkersnijmegen.php

Operations

Data

- BRP: Personal data of the moving person, including the new address.

- BAG: Details of the address to which the person wishes to move.

Links to data sources

BAG: https://bagviewer.kadaster.nl

Technical design

The algorithm works on the basis of a move notification, together with data from the BRP and BAG. The notification is checked against a number of risk profiles. A risk profile is a situation where there is a (high) chance of an error or fraud in the move notification. For example, if someone moves 5 times within a short period of time.


A risk analysis is done for each move. Here it is checked whether a profile applies. If so, the move is given a higher score. With a higher score, the official checks the move.

External provider

Shift2

Similar algorithm descriptions

  • Identity matching in the BRP-Coupling Point

    National Authority for Identity Data

    The search algorithm used by the BRP Link Point to determine whether a person logging in with an eIDAS resource already appears in the Basic Registration of Persons (BRP).

    Last change on 15th of October 2024, at 8:31 (CET) | Publication Standard 1.0
    Publication category
    Other algorithms
    Impact assessment
    DPIA
    Status
    In use

  • The information question Authority in the BRP API Persons

    National Authority for Identity Data

    This algorithm is used within the BRP API Persons to provide parental authority over a minor.

    Last change on 21st of October 2024, at 13:59 (CET) | Publication Standard 1.0
    Publication category
    Impactful algorithms
    Impact assessment
    DPIA
    Status
    In use

  • The information query Name usage in the BRP API Persons

    National Authority for Identity Data

    This algorithm is used within the BRP API Persons to provide name usage in running text. This is applied in, for example, a sentence in a letter when reference needs to be made to another person.

    Last change on 21st of October 2024, at 10:49 (CET) | Publication Standard 1.0
    Publication category
    Impactful algorithms
    Impact assessment
    DPIA
    Status
    In use

  • Anonymisation tool

    Municipality of Steenwijkerland

    The algorithm underlines personal data in documents. An employee has to review all the pages and check whether the document is properly anonymised. Then the software removes all highlighted information and blacklists it. After that, the documents can be published, for example under the Open Government Act (WOO).

    Last change on 21st of May 2025, at 13:54 (CET) | Publication Standard 1.0
    Publication category
    Other algorithms
    Impact assessment
    Field not filled in.
    Status
    In use

  • The information question Salutation in the BRP API Persons

    National Authority for Identity Data

    This algorithm is used within the BRP API Persons to provide the salutation of the requested person. The salutation is used as an introductory sentence in a letter or e-mail.

    Last change on 20th of October 2024, at 6:16 (CET) | Publication Standard 1.0
    Publication category
    Impactful algorithms
    Impact assessment
    DPIA
    Status
    In use