> if you can have alarms go out that something is wrong, you have that then why do you need to see that on a graph? Because the trend the lead to the alarm mi

> if you can have alarms go out that something is wrong, you have that then why do you need to see that on a graph? Because the trend the lead to the alarm might be important and only visible as a graph, for example when did the queue started growing ? Because you want to fine tune your alarms, or handle near-misses again those are best visible on a graph. Or because you want to quickly see some high level behavior of the system, number of users per hour of the day, errors vs number of users etc.