### theory | model:

Biological model
* emphasize genetic and physiological processes as causes of alcohol dependence.
* fall under a wide variety of groups.
* show that overdominance can maintain diversity at that location.

### theory | model:

Climate model
* Every climate model predicts that human warming is greater in winter than in summer.
* are made out of theory.
* are mathematical models of past, present and future climates
  - simulations of the climate system that are programmed on computers
  - sets of mathematical equations
* attempt to represent the full climate system from first principles on large scales.
* can help unravel some of the complexities of atmospheric interactions
  - simulate future climate change due to increasing greenhouse gas concentrations
* describe the relationships among many variables.
* indicate an increase of precipitation at higher latitudes.
* predict a slightly drier climate in tropical areas under global warming
  - that the polar regions are highly sensitive to climate change
* project warmer winters.
* show cooler stratospheric temperatures happen when there is more water vapor present.

Cognitive model
* are computer programs that simulate human performance of cognitive skills
  - the units of currency of knowledge and memory
* describe four different information gathering and processing types.
* enhance the analysis of the work processes of scientists.
* try to represent the robot, the world, and how they interact.

### theory | model:

Computer model
* are also quite valuable in the study of physics
  - an alternative to physical models
  - another approach to prediction of acid generation
  - conceptual work
  - important tools for the integration of scientific knowledge
  - just an expression of many people s mental models
  - one way to predict the effects of protected areas on fish populations
  - the only effective means of taking animal variation into account
* form large portion of cognitive models.
* give people a way to look at statues from any viewpoint.
* predict how a floor reacts to various forces or environmental changes.
* represent the atmosphere by dividing it into boxes.

### theory | model:

Computer simulation
* allow scientists to predict a variety of climate models.
* are a good way to study enzyme reactions
  - staple of modern science
  - common in the military
  - extremely useful in the social sciences
  - the wave of the future
* furnish a means of gleaning insights into human social and economic behavior.
* has growing numbers of applications as a training tool.
* is an increasingly important part of model construction and analysis
  - carried out by selecting random numbers of the same distributions
  - now a major element in many design processes
  - one way to obtain quantiative results
* is the process of implementing models on computers
  - way to see how initial conditions evolve for particular systems
* is used to control for the nonindependence of species
  - predict circuit performance
* makes assumptions.
* reveal complexity of electrical activity in the human thorax.

Conceptual model
* Most conceptual models link the effects of herbivory to ecosystem fertility.
* are cognitive structures that are used to guide inference and reason

### theory | model:

Data model
* Most data models have provision for relationships between entities.
* are abstractions, oftentimes mathematical algorithms and concepts
* are the accepted way for planning and designing an integrated data architecture
  - blueprints of the data in a warehousing environment
* contain data entities, their attributes, and relationships between data entities.
* exist in a variety of forms with varying degrees of syntactic and semantic information.
* represent a shared conceptual understanding of organizational databases.