The acronym stems from the manufacturing world, referring to the original equipment manufacturer (OEM), such as the hardware components, boards, designs, parts or independently functioning units that could be programmatically customized to create additional, larger solutions. Essentially, OEM is a company that produces parts or equipment used by other larger manufacturers in their product. The same analogy is extended to the software industry are libraries.
Similarly, one of the largest ERP providers tried multiple ways to extend their ERP solution into
a platform. Instead of leveraging available best solutions, they decided to build the UX extendable framework in-house. It wasn’t the smartest choice as they weren’t ever able to get the solution to scale to its fullest potential.
The license provides access to the entire set of the Ext JS framework, components and tools, often providing unlimited user licenses for an annual fixed cost.