It wasn't long ago when one of the key requirements of business sponsors, discussed in requirement gathering sessions, was a guaranteed response time of a few seconds. For example, a t-shirt custom print e-shop where you could upload images and then have it rendered on the chosen piece of apparel. Move forward a few years and I can vouch for this myself; I will close the browser window if any web page takes longer than a couple of seconds to load.
Users today expect near instantaneous response. But this is not possible unless the code that you write follows certain standards to deliver the expected performance. There would always be so many different components cooperating and coordinating together to solve some business problem. ...
