Data is often distributed across many databases, cloud platforms, SaaS applications, data warehouses and legacy systems. Moving it all into one repository tends to be costly and time-consuming, especially when organisations need continuous access to the most current information.

Data virtualisation creates local access layer that connects all the data sources without the need to copy or move ALL the underlying data. We're going to briefly discuss data virtualisation and its benefits and then dive into what top 10 data visualisation platforms can help your organisation get unified, governed access to data for use in analytics, AI and other enterprise workloads.

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What Is a Data Virtualisation Platform?

A data virtualisation platform allows applications and users to access information from multiple systems through one single unified layer. One of the ways it does this is by hiding the differences in the location, format and structure of the data it's unifying.

Unlike traditional data extraction, transform and load (ETL) processes, data virtualisation does not necessarily move information into another repository. Instead, it queries the relevant source systems when requested and combines or transforms the results.

Common capabilities of data virtualisation include:

  • Federated querying across multiple sources.
  • Logical or semantic data models.
  • Query optimisation and caching.
  • Centralised data governance and access controls.
  • Connections to BI, analytics and AI tools.

Data virtualisation can be complementary to data warehouses, lakehouses and pipelines by providing access to information that cannot or should not be moved.

What Are the Benefits of Data Virtualisation?

Data virtualisation reduces data duplication while at the same time providing more timely and consistent access to information across various cloud and on-premise systems.

Potential benefits include:

  • Faster access to data that's been distributed far and wide.
  • Less need for manual data movement (thus saving time).
  • More current information for use in analytics.
  • Uniform security and governance.
  • Reusable data views for different applications.
  • Easier access to enterprise data for AI systems.

Despite these wonderful benefits, it should be noted that performance may be affected by network latency, source-system availability and complex federated queries. Caching or other acceleration features within the data virtualisation system may therefore be needed for more demanding workloads.

Let's take a look at some of the top data visualisation platforms: