Applications of simulation
Arena, FlexSim, FlexTerm

- A manufacturing plant with machines, people, transport devices, conveyor belts, and storage space.

- A bank with different kinds of customers, servers, and facilities like teller windows, automated teller machines (ATMs), loan desks, and safety deposit boxes. 

- An airport with departing passengers checking in, going through security, going to the departure gate, and boarding; departing flights contending for push-back tugs and runway slots; arriving flights contending for runways, gates, and arrival crew; arriving passengers moving to baggage claim and waiting for their bags; and the baggage handling system dealing with delays, security issues, and equipment failure.

- A distribution network of plants, warehouses, and transportation links.

- An emergency facility in a hospital, including personnel, rooms, equipment, supplies, and patient transport. 

- A field-service operation for appliances or office equipment, with potential customers scattered across a geographic area, service technicians with different qualifications, trucks with different parts and tools, and a central depot and dispatch center.

- A computer network with servers, clients, disk drives, tape drives, printers, networking capabilities, and operators. 

- A freeway system of road segments, interchanges, controls, and traffic. 

- A central insurance claims office where a lot of paperwork is received, reviewed, copied, filed, and mailed by people and machines. 

- A criminal-justice system of courts, judges, support staff, probation officers, parole agents, defendants, plaintiffs, convicted offenders, and schedules. 

- A chemical-products plant with storage tanks, pipelines, reactor vessels, and railway tanker cars in which to ship the finished product.

- A fast-food restaurant with different types of staff, customers, and equipment. 

- A supermarket with inventory control, checkout, and customer service.

- A theme park with rides, stores, restaurants, workers, guests, and parking lots. 

- The response of emergency personnel to a catastrophic event.

- A network of shipping ports including ships, containers, cranes, and landside transport.

- A military operation including supplies, logistics, and combat engagement. 

Summary:

Simulation of applications in many fields, helps minimize risks and reduce costs.

Common distributions in simulation
Beta, Gamma, Johnson, Normal, Poission