| FactoryInterface | Interface for creating commands by name |
| AliasFactory | Command factory used when you need to provide aliases to commands |
| CompositeFactory | Composite factory used by a client object to create command objects utilizing multiple factories |
| ConcreteClassFactory | Command factory used to create commands referencing concrete command classes |
| MapFactory | Command factory used when explicitly mapping strings to command classes |
| ServiceDescriptionFactory | Command factory used to create commands based on service descriptions |