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Mapping data flow for the EU GDPR

Under Article 30 of the GDPR (General Data Protection Regulation) organisations need to have documentation of their data processing activities. The best way to create this documentation, is to map your data flows. This is also an essential first step for completing a DPIA (data protection impact assessment), which is a mandatory risk assessment for certain types of processing.

For advice and guidance on data flow mapping under the GDPR, and to find out more about the support options we can offer you, get in touch with one our GDPR experts today.

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Key elements of data mapping

To effectively map your data, you need to understand the information flow, describe it and identify its key elements.

1. Understand the information flow

An information flow is a transfer for information from one location to another, for example:

  • From inside to outside the European Union
  •  From supplies and sub-suppliers through to customers.

2. Describe the information flow

  • Walk through the information lifecycle to identify unforeseen or unintended uses of data. This also helps to minimize what data is collected.
  • Make sure the people who will be using the information are consulted on the practical implications.
  • Consider the potential future uses of the information collected, even if it is not immediately necessary.

3. Identify its key elements

  • Data items
    What kind of data is being processed (name, email, address, etc.) and what category does it fall into (health data, criminal records, location data, etc.)?
  • Formats
    In what format do you store data (hardcopy, digital, database, bring your own device, mobile phones, etc.)?
  • Transfer method
    How do you collect data (post, telephone, social media) and how do you share it internally (within your organization) and externally (with third parties)?
  • Location
    What locations are involved within the data flow (offices, the Cloud, third parties, etc.)?
  • Accountability
    Who is accountable for the personal data? Often this changes as the data moves throughout the organization.
  • Access
    Who has access to the data in question?
  • Lawful basis
    Identify the lawful basis used for processing the personal data.

The key challenges of data mapping

  • Identifying personal data

    Personal data can reside in a number of locations and be stored in a number of formats, such as paper, electronic and audio. Your first challenge is deciding what information you need to record and in what format.

  • Identifying appropriate technical and organizational safeguards

    The second challenge is likely to be identifying the appropriate technology – and the policy and procedures for its use – to protect information while also determining who controls access to it.

  • Understanding legal and regulatory obligations

    Your final challenge is determining what your organization’s legal and regulatory obligations are. As well as the GDPR, this can include other compliance standards, such as the Payment Card Industry Data Security Standard (PCI DSS) and ISO 27001.

    Once you’ve completed these three challenges, you’ll be in a position to move forward, gaining the trust and confidence of your key stakeholders.


Data flow mapping

The Data Flow Mapping Tool simplifies the process of creating data flow maps, giving you full visibility over the flow of person data through your organization.

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Watch our webinar below to find out more about conducting a data flow mapping under the GDPR, or read our free PDF download about the data flow mapping tool >>

 
 

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