ASP.NET MVC gives you a powerful, patterns-based way to build dynamic websites that enables a clean separation of concerns and that gives you full control over markup for enjoyable, agile development.
Arrival pattern of requests: The arrival pattern describes the distribution of time between request arrivals. The arrival pattern to a queueing system is typically described in terms of the average time between two successive arrivals or the average number of arrivals per some unit of time. The exponential distributions are typically used to model the time between the arrival of requests [2] and [4] The arrival pattern in a queuing process represents the think time in a perform test. Service pattern of tasks: The service pattern describes the distribution of services times. The service times of web requests closely follow long-tailed distributions.
ETA is Estimated Time of Arrival...it is not relevant but is used commonly in form of when the job will be delivered...example if your boss asks you eta on the job he assigned he is looking for at what time do you think you are going to submit him...