How Big Data and AI Work Together

Teams working with high-volume data often run into delays and inconsistency when engineering, Big Data and AI sit on separate tracks. Accuracy and reporting stability improve only when both functions operate within one structure. 

When data engineering and AI sit in different systems, teams end up with inconsistent definitions, duplicate logic, and reports that change from one source to another. This weakens accuracy before the model even starts learning. When both areas operate in one structure, the data passes through the same rules, the same checks, and the same logic. That gives the model cleaner input, which reduces noise and improves accuracy. Reporting stability improves for the same reason, as every team works from one version of the truth rather than several disconnected systems. 

For example, according to McKinsey, applying AI-driven forecasting in supply-chain management has been shown to reduce forecasting errors by 20 to 50 percent. 

How Big data and AI connect

Large datasets give AI the breadth required to judge patterns across many scenarios. AI processes this information at scale, which gives organisations clearer forecasting, steadier operations, and a more accurate view of customer and supplier behaviour. When both big data and AI operate in one structure, performance improves over time instead of drifting through manual fixes and inconsistent reporting behaviour.  

The alignment between business goals, data foundations, and AI outputs is explored in Data and AI Strategy guide. 

What Big Data looks like inside a business

Big Data is not only size. It often appears as: 

Combined graphic of database flow with arrow, representing the complete big data and data warehousing ecosystem.  Streams of transactional activity
Combined graphic of database flow with arrow, representing the complete big data and data warehousing ecosystem. Logs from internal systems
Combined graphic of database flow with arrow, representing the complete big data and data warehousing ecosystem. Text, images, or audio
Combined graphic of database flow with arrow, representing the complete big data and data warehousing ecosystem. Information in many formats that need engineering work to align.  

A common challenge is merging this information into a structure that stays reliable across downstream processes. We explain how to achieve that in Big Data and Data Warehousing guide. 

What AI contributes

AI processes large datasets, predicts outcomes, and classifies information faster than manual analysis. These models require clean and stable input data. If the underlying data is inconsistent, the model cannot produce at the high level of quality. Good engineering discipline is a requirement for the effective application of AI for commercial goals. 

How Big data and AI work together

Once the foundation is cleaned and completed, AI can use the data in decision-making across operations, supply chain, customer behaviour, and financial planning. With that, the accuracy of models grows, as the model learns from far more cases and behaviours and catches patterns that are not visible in smaller datasets. AI then turns this information into clearer outputs that teams can use for business needs. 

Global retailer improving inbound shipment timing

A global retailer operating more than 2,000 stores faced uncertainty around inbound shipment timing due to large volumes of purchase orders, shipment data, and supplier records. This created a genuine Big Data environment across several regions. 

The company deployed an AI system built on top of its consolidated supply-chain data. Once the information sat in one structure, the models produced clearer arrival-time predictions and removed manual guesswork. 

Results: 

How Big Data and AI Fit Together in Practice arrow icon Lead-time prediction accuracy improved by 55 percent
How Big Data and AI Fit Together in Practice arrow icon Daily in-transit accuracy improved by 25 percent
How Big Data and AI Fit Together in Practice arrow icon Estimated annual economic benefit reached USD 30 million, rising to USD 100 million at full scale 

This case shows how big data and AI can improve operational timing when the structure is consistent. 

Bayer improving clinical data review

Bayer manages large volumes of clinical and research information in a regulated environment. The data comes from multiple trials and formats, creating high operational and compliance requirements. 

Bayer moved its clinical datasets into a unified environment. AI and machine-learning tools then supported medical review at scale, reducing delays caused by manual consolidation. 

Results: 

How Big Data and AI Fit Together in Practice arrow icon Medical review processes ran roughly ten times faster
How Big Data and AI Fit Together in Practice arrow icon Teams could analyse larger datasets without the slowdowns seen in the older setup
How Big Data and AI Fit Together in Practice arrow icon The organisation gained a more stable foundation for future trial work 

This shows how big data and AI can support time-sensitive review processes when the information sits in one platform. 

Common challenges in Big Data and AI

Most organisations face a mix of technical and behavioural obstacles. 

How Big Data and AI Fit Together in Practice arrow icon Inconsistent information that weakens AI output
How Big Data and AI Fit Together in Practice arrow icon Infrastructure decisions that add cost if not planned correctly
How Big Data and AI Fit Together in Practice arrow icon Regulatory requirements around privacy and data management
How Big Data and AI Fit Together in Practice arrow icon Shortage of technical skills to maintain the environment
How Big Data and AI Fit Together in Practice arrow icon Slow adoption because teams rely on spreadsheets or instinct 

The issues become more visible once Big Data and AI grow beyond early pilot work. 

How to begin
  1. Review current data maturity and agree on the first business problem to address.
  2. Build a team covering engineering, modelling, and the business function.
  3. Use tools that can store, process, and analyse large datasets in one environment.
  4. Start with a contained pilot to confirm the value and shape the wider plan. 
Conclusion

Big data and AI work best when handled as one system. When the foundation is structured and consistent, AI models deliver clearer outputs and reduce delays across the organisation. When the setup is fragmented, costs rise and results weaken. Leaders gain the most when data engineering and AI share ownership and direction.

A short conversation can clarify the right starting point

If your team wants support planning or delivering a Big Data and AI programme, we can help.

Keith Cutajar, COO, Data Engineering Expert

Author

Keith Cutajar is Chief Operating Officer at Eunoia, bringing over eight years of hands-on experience leading data and AI transformation projects.  

He has overseen end-to-end implementations across cloud platforms like Azure and Databricks, with a focus on turning complex data systems into real business outcomes. 

Keith holds multiple certifications in Microsoft Fabric, Azure, and Databricks, and has led cross-functional teams through platform migrations, AI deployments, and analytics modernisation initiatives. 

His track record positions him as a trusted voice for organisations looking to operationalise data at scale.