**Identification Procedure**in detail. The flow chart for Identification is shown below.

Flow chart for Identification Procedure |

The process is divided into 4 steps and are explained as follows:

**Step-1: Experiment**

Apply input and observe the effect on output results used to infer a model of the system.

**Step-2: Select Model Structure**

In second step we choose set of candidate models and assigned different subsets. These model structure are selected based on appropriate model structure. example: linear, multilayer perceptron, wavelets, etc.

**Step-3: Estimate Model**

To pick one particular model based on some performance criterion.

**Step-4: Validate Model**

To check whether the estimated model meets the requirements. It will ensure that the model is useful not only for the estimation data but also for other data sets of interest.

**Excercise**

Q1. Explain all four steps involved in Identification Procedure.