Model

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A detailed and explicit description of a computation procedure. D↷ A model can be automatically run by a computer after the input parameters have been entered. The output of the computation is optimally the result of a variable. A model relates to the "management" subattribute of the "process" template. <section end=glossary />

Model description

Model description contains the general format for the description of models.

Summary

• How to access

Name

Scope

• Purpose
  • The method that this model relates to. (All methods are about information processing, and all models are managing a particular method.)
  • The management needs for which the model is needed (instead of just ad hoc management of the method).
• Boundaries (related to the part of reality that the model deals with)
  • Field(s) of model: Choose between Outdoor Air; Indoor Air; Water; Soil; Noise; Exposure; Multimedia; Consumer products; Drinking water; Dose-Response, PBPK; Integrated Assessment systems; Monetary Evaluation; etc.
  • Spatial coverage
  • Spatial resolution
  • Temporal coverage
  • Temporal resolution
  • Pollutants / Stressors / Agents covered
  • Health effects
  • Population data
  • Source types of emissions / sectors
  • Physical information (e.g. meteorologies)

Structure of the process

• Input (separately described for each input)
  • Data type
  • Data sources
  • Data format
  • Input stemming from other models
• Procedure
  • Procedure as such
  • Assumptions and constraints made to facilitate the calculation
  • Management of the model
    • Operating System: Please choose between WINDOWS; UNIX; LINUX; OS-MAC; VAX-VMS; etc.
    • Portability: YES (which OS) / NO
    • Software requirements
    • Please list here the software(s) that are needed to run the model (if someone)
    • Hardware platform on which it runs
    • Time required for a typical run
    • Programming language and functions
      • Please specify which programming language and/or functions used
      • Developed by/support available from
      • Intellectual property rights (who is allowed to access or use the model?)
        • Owned by ...
        • Canned model cannot be modified / Open source / Operated under license / Other
      • Degree of mastery (who could use the model? Must he/she be trained?): In familiarization / Basic user / Expert user
      • Can modify/reprogram within platform YES / NO
      • Can transport to alternate platform YES / NO
      • Unit responsible for running and maintenance
      • Contact person
• Output (separately described for each output)
  • Data type (incl. if the output is point estimates or a distribution)
  • Data sources
  • Data format
  • Results
  • Output that goes into other models
  • Database type: Please choose between ORACLE; SQL; MS-ACCESS; etc

Rationale

• Rationale (general)
• Weaknesses of the model
• Comments

See also

References