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Big Data? Key Factors to Consider When Running a Data Migration Programme



Data migration is a complex and often challenging process that can significantly impact a business’s operations, efficiency and growth. Whether migrating to a new system, upgrading infrastructure, or consolidating data platforms, it’s essential to consider a variety of factors to ensure a smooth transition. We've pulled together various insights and wisdom from trusted Community Partners, exploring the key areas to focus on when running a data migration programme, with particular focus on change management, data quality, infrastructure and vendor management. We will also provide practical tips and step-by-step guidance to help ensure success.


1. Change Management


The practical, people-side of digital transformation. Effective change management is crucial in any data migration programme. The process often affects multiple departments and stakeholders across the organisation and without proper planning, it can lead to disruptions or resistance to change.


Key considerations


  • Identify key stakeholders early and engage and involve them throughout the process.

  • Regular communication helps align expectations and minimise resistance to change.

  • Establish a transparent communication plan that outlines the goals, timelines and potential impacts of the migration.

  • Ensure users are adequately trained on the new system or processes. Offering ongoing support post-migration can reduce operational downtime.


  • Top Tip - Implement a phased approach to change management. Start with a pilot project to allow a smaller user group to adapt, gather feedback and make improvements before rolling out to the entire organisation.


2. Data Quality


Data quality is one of the most important aspects of a successful migration. Poor data quality can lead to inaccurate reporting, decision-making errors and system inefficiencies after the migration.


Key considerations:


  • Before migrating data, cleanse it by identifying duplicates, correcting errors and removing obsolete records. This ensures that only clean, relevant data is transferred.

  • Develop a clear data mapping strategy to ensure all data fields from the source system correspond accurately to those in the target system.

  • After migration, validate the data to confirm that no records were lost, modified, or duplicated during the process.


  • Top Tip - Leverage automated data quality tools to help manage the cleansing and validation process, reducing the risk of human error.


3. Data Warehousing


If you’re migrating large amounts of data or consolidating data from multiple systems, considering data warehousing becomes essential. A well-designed data warehouse can provide a central repository for structured data, making it easier to access and analyse post-migration.


Key considerations:


  • Ensure the data warehouse has enough storage capacity to accommodate the volume of data being migrated.

  • Develop a solid ETL process (Extract, Transform, Load) to ensure data is efficiently extracted from the source system, transformed to fit the target system and loaded without loss or corruption.

  • Pay attention to security measures, particularly if sensitive data is being migrated. Ensure the data warehouse complies with industry regulations like GDPR or HIPAA.


  • Top Tip - Design the data warehouse with future scalability in mind, allowing for additional data sources or business intelligence tools to be integrated easily post-migration.


4. Infrastructure


A successful data migration requires robust infrastructure that can handle the migration workload without causing operational delays. This includes hardware, software, network and system configurations that support the seamless movement of data.


Key considerations:


  • Assess the current infrastructure for performance and planning initiatives, to ensure it can handle the data transfer without affecting day-to-day business operations.

  • Plan the migration to minimise system downtime, especially if it involves customer-facing systems or critical business processes.

  • Always have a backup plan in place. Back up all data before migration to avoid loss in case of failure.


  • Top Tip - Perform a trial migration in a test environment to assess how well the infrastructure handles the migration and identify any potential bottlenecks.


5. Vendor Management


In most cases, you will work with external vendors, including software providers, cloud service platforms and consultants, during the migration process. Vendor management is crucial for ensuring deadlines, support and service quality.


Key considerations:


  • Set clear terms and conditions with vendors around timelines, deliverables, service levels, and support during and after the migration.

  • Encourage regular communication between internal teams and external vendors to ensure smooth collaboration throughout the process.

  • Make sure your vendors provide support after the migration is complete. This is critical for resolving any post-migration issues or system glitches.


  • Top Tip - Build strong relationships with your vendors and ensure they understand your business’s specific needs to tailor their services accordingly.


Key Steps to Achieving a Successful Data Migration


To tie it all together, here is a step-by-step guide to executing a data migration program:


1. Define Your Migration Strategy


Begin by identifying the scope of the migration. Will it involve a complete system overhaul, or will you migrate select datasets? Define key business objectives and timelines.


2. Perform Data Assessment & Cleansing


Assess the current state of your data. Identify areas that need cleaning or consolidation. This is a good opportunity to retire old or unused data.


3. Design the Migration Framework


Develop a comprehensive migration plan, including data mapping, migration tools and processes. Define the timeline and allocate resources to each phase.


4. Set Up a Test Environment


Set up a testing environment to perform a dry run of the migration process. This will help identify any issues related to infrastructure, system configurations, or data corruption before the actual migration.


5. Execute the Migration


Proceed with the data migration, ensuring all teams are coordinated and the process is monitored closely. Keep stakeholders informed of progress and any challenges.


6. Validate Data & Post-Migration Testing


Once the migration is complete, validate the data to ensure it has been transferred correctly. Test the functionality of the new system with the migrated data to ensure there are no errors or disruptions.


7. Monitor and Optimise


After the migration, continue to monitor system performance and address any issues promptly. Gather feedback from users and optimise the system for better efficiency.


The So-What Test?


A data migration program is a significant undertaking that requires careful planning and execution. By focusing on key factors such as change management, data quality, infrastructure and vendor management, you can mitigate risks and ensure a smooth transition. Following the step-by-step process outlined above and incorporating our top tips will help set your migration project up for success, with minimal disruption to your business.


Successful data migration is not just about transferring data from one system to another - it's about ensuring that the migrated data is clean, accessible and useful in its new environment. With the right approach, your organisation can unlock new efficiencies and business insights, setting the stage for future growth.


Community Partners have recently delivered a successful data migration programme for a large renewable energy organisation. In fact, this was seen as more of a turnaround project which was already behind schedule and overspent. After re-establishing the roadmap, governance frameworks and an accountable delivery methodology, our trusted community were able to ensure a smooth data migration process for a large renewable energy organisation without disruption to the BAU operations.

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