Abstract: A system of the present invention enables the running of browser based, pluggable Big Data Applications powered by intelligent workflows. The system receives from a user computer browser application a request for execution of a workflow. The request is submitted for execution of the workflow to the Spark® cluster as a Spark® job including information about the workflow details. The result of the execution of the workflow is received from the driver running on the Spark® cluster after each node of the workflow request has been executed on the Spark® cluster. A JSON/XML-format files containing the received results of the execution of the workflow is then created, such that when the JSON/XML format files are processed by the user computer web browser, the results are displayed on the user computer as rich text/table/chart/tree visual displays.