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Big-data, data analysis, and strategic decision-making

This guide introduces you to the principles of big data, fundamental data analysis techniques, and strategies for using data to inform decision-making. In addition, it explores ethical considerations and data literacy skills, that are essential for effect
Ethics in data use involves making responsible decisions about how data is collected, analysed, and applied. As data becomes increasingly central to decision-making across sectors, ethical considerations are more important than ever. 

Key ethical principles in data use

  • Transparency: Being open about data collection, processing, and usage 
  • Consent and control: Ensuring individuals understand and agree to how their data will be used, and can control its usage  
  • Access: Giving individuals the right to access their data at any time  
  • Privacy: Protecting personal information from unauthorised access 
  • Fairness: Preventing discriminatory outcomes from data analysis 
  • Accountability: Taking responsibility for decisions based on data 
  • Data minimisation: Collecting only necessary data for specific purposes 
  • Purpose limitation: Using data only for its intended and stated purpose 

Data privacy and protection

Key Regulations and Frameworks - Check out a few of the links that interest you 

Data privacy and security best practices

Data privacy best practices 

  • Data anonymisation: Implementing anonymisation and pseudonymisation (a data protection technique that replaces personally identifiable information (PII) with artificial identifiers or pseudonyms) techniques. 
  • Data encryption: Using encryption for sensitive data storage and transmission 
  • Privacy policies: Developing clear policies and data retention schedules 
  • Impact assessments: Conducting privacy impact assessments for new data initiatives 
  • Breach protocols: Establishing protocols for notification and response 
  • Regular auditing: Regularly auditing data access and usage 

Data security best practices 

  • Access controls: Implementing proper authentication and authorisation 
  • Data encryption: Protecting data both in transit and at rest 
  • Secure storage: Using appropriate security measures for data repositories 
  • Breach prevention: Implementing safeguards against unauthorised access 
  • Security training: Educating staff about security protocols 
  • Incident response: Having plans for addressing security breaches 

Bias and fairness in data and algorithms

Bias in data and algorithms can reinforce existing inequalities and lead to unfair outcomes. Understanding the sources of bias and implementing strategies to mitigate them is essential for building fair, transparent, and responsible AI systems. 

Strategies for mitigating bias 

  • Diversify data collection sources and methods 
  • Perform rigorous bias testing across different demographic groups 
  • Include diverse perspectives in data science teams 
  • Implement algorithmic fairness techniques and metrics 
  • Establish ongoing monitoring for biased outcomes 
  • Be transparent about limitations and potential biases 

Mock case study: Ethical dilemma in predictive policing

Top tips for ethical data practice

  • Consider ethical implications at the start of any data project, not as an afterthought 
  • Apply ethical frameworks consistently across all data activities. 
  • Remember that legal compliance is the minimum standard, not the ethical ideal 
  • Engage diverse stakeholders in discussions about data use and potential impacts 
  • Document decisions about data collection and usage for transparency 
  • Regularly review and audit data systems for unintended consequences 
  • Stay informed about evolving regulations and best practices in data ethics. Organisations such as The Turing Institute, the Open Data Institute,  the Ada Lovelace Institute are a great place to start.

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University of Exeter LibGuide is licensed under CC BY 4.0