"A time series is a sequence of data points, measured typically at successive points in time spaced at uniform time intervals. ... Time series are very frequently plotted via line charts. Time series are used in statistics, signal processing, pattern recognition, econometrics, mathematical finance, weather forecasting, earthquake prediction, electroencephalography, control engineering, astronomy, and communications engineering.
Time series analysis comprises methods for analyzing time series data in order to extract meaningful statistics and other characteristics of the data. Time series forecasting is the use of a model to predict future values based on previously observed values." [Time series. Wikipedia]
The example "Orders by months - Time series dashboard" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Time Series Dashboard solution from the area "What is a Dashboard" of ConceptDraw Solution Park.