# Submissions flow It's assumed that readers understand [[Architecture]], [[Terminology]], [[Communication]] and [[Assignments Overview]]. This article will describe in detail execution flow of submission from the point of submission into web application to the point of evaluation of results from execution. ## Web Application - user submits his solution to web application - T - O - D - O - . - . - . - . ## Broker - T - O - D - O - . - . - . ## Worker - T - O - D - O - . - . - . ## Web Application - evaluation of execution results is provided on user demand - T - O - D - O - . - . - .