System phenomena is the science of observing the behaviour of a system

System

System is a set of interacting or interdependent components forming an integrated whole....

. The classification of a dynamic system describes how systems are grouped with certain characteristics into special classes and identify mathematical techniques that apply to these classes of problems.

In particular most systems have five characteristics:

1. linear
   Linear
   In mathematics, a linear map or function f is a function which satisfies the following two properties:* Additivity : f = f + f...
   
    or nonlinear
2. constant or variable coefficient
3. forced or unforced
4. lumped or distributed parameter
5. deterministic or stochastic
   Stochastic
   Stochastic refers to systems whose behaviour is intrinsically non-deterministic. A stochastic process is one whose behavior is non-deterministic, in that a system's subsequent state is determined both by the process's predictable actions and by a random element. However, according to M. Kac and E...