# What is hierarchical Finite State Machine?

## What is hierarchical Finite State Machine?

Hierarchical state machines are finite state machines whose states themselves can be other state machines. Hierarchy is a useful con- struct in many modeling formalisms and tools for software design, requi- rements and testing.

**What is Finite State Machine explain in detail?**

A finite-state machine (FSM) or finite-state automaton (FSA, plural: automata), finite automaton, or simply a state machine, is a mathematical model of computation. It is an abstract machine that can be in exactly one of a finite number of states at any given time.

### What are the elements of Finite State Machine?

A finite state machine (FSM) 1 consists of a set of states s_i and a set of transitions between pairs of states s_i, s_j. A transition is labeled condition / action : a condition that causes the transition to be taken and an action that is performed when the transition is taken.

**What is Finite State Machine with example?**

Finite state machines can be used to model problems in many fields including mathematics, artificial intelligence, games, and linguistics. A system where particular inputs cause particular changes in state can be represented using finite state machines. This example describes the various states of a turnstile.

#### What is hierarchical state machine?

Hierarchical state machine design captures the commonality by organizing the states as a hierarchy. The states at the higher level in hierarchy perform the common message handling, while the lower level states inherit the commonality from higher level ones and perform the state specific functions.

**What is a finite state diagram?**

A classic form of state diagram for a finite state machine or finite automaton (FA) is a directed graph with the following elements (Q,Σ,Z,δ,q 0 ,F): Vertices Q: a finite set of states, normally represented by circles and labeled with unique designator symbols or words written inside them.

## What is a state machine?

state machine. Share this item with your network: In general, a state machine is any device that stores the status of something at a given time and can operate on input to change the status and/or cause an action or output to take place for any given change.