Definition:
As the name suggests, a Time Series Chart is typically a how much chart that shows the quantity of something changing over the time. This chart shows the rise and fall of prices, rates, numbers, temperatures or anything that can be measured from one time to another.
Time Series Chart gives a clear comparison of the cost spent on the entire Software Development Lifecycle in the present year to the past. Just as in any other chart, the horizontal line in the time series chart shows time and the vertical line shows amount. We can compare the development costs with the data collected from previous years project management files. For every two years the time series chart compares the development cost to release cycles, so as to show the rise and fall of cost.
Further Reading:
Book: The Back of the Napkin by Dan Roam
