A consequence of living in a rapidly changing society is that the state of all systems changes just as rapidly, and with that comes inconsistencies in operations. But what if you could foresee these inconsistencies?
Time series data refers to a collection of data points that describe a particular system at various points in time.
This means that the time series data of a system is a detailed record of its various states as time passes by.
So given records of a system from time immemorial till yesterday, the process of predicting the state of the system today and tomorrow is time series forecasting.