When I asked if traditional Web performance still mattered, the post generated a flurry of comments and questions that I haven't seen in in a long time.
After some reflection and discussions with people who have been tackling this problem for longer than I have, the answer is yes, it does matter. However, synthetic Web performance measurement will not matter the way it does now. The synthetic approach will decrease in importance within fully evolved companies, organizations that have strong cultures of Web performance.
In these organizations, the questions change as the approach becomes foundational and integral to the operation of the online business. Ways of examining competition and performance improvement evolve, and the focus moves - from the perspective of We have a problem to one of of Our customers / visitors have a problem.
[caption id="attachment_2776" align="aligncenter" width="300" caption="The Focus of Web Performance"][/caption]
The shift is fundamental and critical. For as long as I have been in the business, synthetic measurements have served as a proxy for customer experience. But unless you get into the browser, out to where and how the customer uses the online application, the margin of error will remain large.
The customer is not an operational issue. There is no technical fix for perceived performance.
There is no easy solution for evolving the experience of performance.
Image courtesy of james_gordon_los_angeles