Difference in document object models across browsers

Both the Netscape/Mozilla and IE browsers maintain different document object models. Given the current era of open source, what do you think is the wisdom of maintaining 2 models?

© SolutionLibrary Inc. solutionlibary.com 9836dcf9d7 https://solutionlibrary.com/computer-science/software-development/difference-in-document-object-models-across-browsers-7dph

Solution Preview

...ML page and browser state, DOM is required.
W3C started developing the DOM specifications to have a standard for browsing technologies, so that we have a standard maintained and followed by all the browsers.
Most of the DOM Level 1 and DOM Level 2 specifications are implemented ...