1.A/an ____________________ advances time in arbitrary time steps between successive events. This is the type of simulation most often used for system or process analyses. One or more event lists maintain a list of the events yet to be executed.

2. A/an ____________________ is an abstract mathematical representation (or mathematical abstraction) of a referent system or process.

3. A/an ____________________ marks the change in state of a system or process at an instant in time.

4. A/an ____________________ advances time in fixed time steps. This is the simplest time abstraction and is often used for games or visualizations where graphical aesthetics are more important than analytical results.

5. A/an ____________________ is a physical representation of a reference system or process. A physical model is used to analyze physical aspects of the system or process.

6. A/an ____________________ decomposes the elements of a system or process into the fundamental events that change the state of the model.

7. A/an ____________________ is an abstract representation (or abstraction) of a referent system or process that is expressed as a computer program.

8. A/an ____________________ is a representation of a referent system or process.

9. A/an ____________________ marks the change in state of a system or process that advances (i.e., consumes) time.

10. The ____________________ is a list of events that have been scheduled but not yet executed.

11. A/an ____________________ is an abstract representation (or conceptualization) of a referent system or process.

12. A/an ____________________ is a computational model that abstracts time (and possibly space) in some specific manner.

13. A/an ____________________ decomposes the elements of a system or process into the activities that advance (i.e., consume) simulation time.

14. A/an ____________________ models the change in state of a system of process over its entire life cycle.

15. A/an ____________________ advances time by some numerical integration method. The model itself is specified as a series of differential equations (or difference equations in simpler cases).

16. A/an ____________________ approach decomposes the elements of a system or process into its constituent (simulation) processes.