Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision		 Previous revision
dcc:pdpsol:pseudonymization [2026/02/19 15:17] – marlondcc:pdpsol:pseudonymization [2026/02/24 12:38] (current) – [Introduction] marlon
Line 2: Line 2:
 ====== Pseudonymization ====== ====== Pseudonymization ======
 ===== Introduction ===== ===== Introduction =====
-//“Pseudonymization is a de-identification procedure during which personally identifiable information is replaced by a unique alias or code (pseudonym). In some situations, the researcher maintains the link between the unique code and the data subject in a keyfile, while in other projects this connection is not necessary.”// +Pseudonymization is a de-identification procedure during which personally identifiable information is replaced by a unique alias or code (pseudonym). In some situations, the researcher maintains the link between the unique code and the data subject in a keyfile, while in other projects this connection is not necessary. 
  
 The manner in which pseudonymization is done varies between projects based on the research setup. It is good practice to describe the process of pseudonymization specific to your research either in your data management plan or a separate Pseudonymization Protocol. You can use the examples below to guide you in this process. The manner in which pseudonymization is done varies between projects based on the research setup. It is good practice to describe the process of pseudonymization specific to your research either in your data management plan or a separate Pseudonymization Protocol. You can use the examples below to guide you in this process.
Line 28: Line 28:
 First, create a pseudonymization keyfile (e.g., in Excel or another UG approved tool available in the University Workplace) that assigns each data subject a unique pseudonymization ID. For the creation of the pseudonymization IDs, you can follow the same steps as described in //Pseudonymization without a keyfile//. Direct identifiers such as names, email addresses, or phone numbers should be stored only in this keyfile (Figure 2) and removed from the research dataset. In the research dataset, remove all direct identifiers or replace them with the pseudonymization IDs.   First, create a pseudonymization keyfile (e.g., in Excel or another UG approved tool available in the University Workplace) that assigns each data subject a unique pseudonymization ID. For the creation of the pseudonymization IDs, you can follow the same steps as described in //Pseudonymization without a keyfile//. Direct identifiers such as names, email addresses, or phone numbers should be stored only in this keyfile (Figure 2) and removed from the research dataset. In the research dataset, remove all direct identifiers or replace them with the pseudonymization IDs.  
  
-**Figure 2: Pseudonymization key**+**Figure 2: Pseudonymization with keyfile**
 ---- ----
-{{:dcc:pdpsol:pseudonymization:pseudk.png?direct&400|}}+{{:dcc:pdpsol:pseudonymization:pseudk.png?direct&400 |}}{{:dcc:pdpsol:pseudonymization:pseudnk.png?direct&400|}}
  
 ==== Managing the keyfile ==== ==== Managing the keyfile ====
Line 44: Line 44:
 This approach reduces the risk of re-identification and protects sensitive information throughout the data transfer process. For guidance on implementing this protocol, contact your [[https://www.rug.nl/digital-competence-centre/contact/|faculty data steward or the DCC]]. This approach reduces the risk of re-identification and protects sensitive information throughout the data transfer process. For guidance on implementing this protocol, contact your [[https://www.rug.nl/digital-competence-centre/contact/|faculty data steward or the DCC]].
  
-**Figure 3: Pseudonymization key with double coding**+**Figure 3: Pseudonymization with double coding**
  
 ---- ----
-{{:dcc:pdpsol:pseudonymization:pseuddc.png?direct&400|}}+{{:dcc:pdpsol:pseudonymization:pseudnk.png?direct&350|}}{{:dcc:pdpsol:pseudonymization:pseuddc.png?direct&350 |}}{{:dcc:pdpsol:pseudonymization:pseuddc2.png?direct&350 |}}
  
 [[dcc:pdpsol:start | → Go back to the Privacy & Data protection home page]] [[dcc:pdpsol:start | → Go back to the Privacy & Data protection home page]]