Difference between revisions of "Creating Lucid Influence Diagrams"

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This chapter offers guidelines for creating influence diagrams that are clear and comprehensible by careful arrangement of nodes, well-designed module hierarchies, and judicious use of color. It also describes how to adjust and align nodes, and customize styles for nodes and diagrams. Options include which arrows to show, node sizes, colors, text size, and font family.
 
  
==Contents of the Analytica User Guide Chapter 6==
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For a model to be effective in helping a client make better decisions, the client has to trust that it is a good representation of the problem -- the way the decisions, assumptions, and uncertainties affect the objectives that they care about.  It is therefore important that the model be '''transparent''' -- that the modeler and others, including the client, can understand the essential structure and assumptions, so that they can develop confidence in the results.  Influence diagrams were developed specifically to support communication between modeler and client. They provide an intuitive visual display, to help create, navigate, explore, and communicate models. Unlike diagrams sometimes used to design or document spreadsheets or programs in R, Python, and other languages, Analytica's influence diagrams are a key aspect of the computer representation. The node types and influence arrows are guaranteed to reflect the underlying quantitative structure.
  
===[[Guidelines for creating lucid and elegant diagrams]]===
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You can draw a model as a lucid influence diagram to display its essential qualitative structure, uncluttered by quantitative details. You can
===[[Arranging nodes to make clear diagrams]]===
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organize a complex model into a hierarchy of such modules, with each diagram showing part of the model in a simple comprehensible form. 
===[[Organizing a module hierarchy]]===
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===[[Color in influence diagrams]]===
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:[[File:Chapter6 1.png]]
===[[Diagram Style dialog]]===
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===[[Node Style dialog]]===
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But, it's still possible to create impenetrable spaghetti!
===[[Taking screenshots of diagrams]]===
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:[[File:Chapter6 2.png]]
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These pages offer tips for creating lucid diagrams and module structures to make sure that your models are truly transparent.  Key guidelines including how to size and arrange nodes, organize module hierarchies, and the judicious use of color. Options include which arrows to show, node sizes, colors, text size, and font family.
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* [[Guidelines for creating lucid models]]
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* [[Arranging nodes to make clear diagrams]]
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* [[Organizing a module hierarchy]]
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* [[Color in influence diagrams]]
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* [[Diagram Style dialog]]
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* [[Node Style dialog]]
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* [[Taking screenshots of diagrams]]
  
 
==See Also==
 
==See Also==
{| style="margin: 1em auto 1em auto;width: 100%;border:0;table-layout: fixed;" cellpadding=5
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* [[Tutorial: Reviewing a model#Recognizing_influence_diagrams|Tutorial: Recognizing influence diagrams]]
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* [https://www.youtube.com/watch?v=FdNhhoEb0Zs Using Influence Diagrams] (explanatory video on YouTube)
| [[Chapter 5: Building Effective Models]] <- || [[Chapter 6: Creating Lucid Influence Diagrams]] || -> [[Chapter 7: Formatting Numbers,
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* [[Create a model]]
Tables, and Graphs]]
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* [[Diagram window]]
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* [[Diagram menu]]
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* [[Graphics, frames, and text in a diagram]]
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<footer>Building Effective Models / {{PAGENAME}} / Number and table formats </footer>

Latest revision as of 18:19, 20 December 2022


For a model to be effective in helping a client make better decisions, the client has to trust that it is a good representation of the problem -- the way the decisions, assumptions, and uncertainties affect the objectives that they care about. It is therefore important that the model be transparent -- that the modeler and others, including the client, can understand the essential structure and assumptions, so that they can develop confidence in the results. Influence diagrams were developed specifically to support communication between modeler and client. They provide an intuitive visual display, to help create, navigate, explore, and communicate models. Unlike diagrams sometimes used to design or document spreadsheets or programs in R, Python, and other languages, Analytica's influence diagrams are a key aspect of the computer representation. The node types and influence arrows are guaranteed to reflect the underlying quantitative structure.

You can draw a model as a lucid influence diagram to display its essential qualitative structure, uncluttered by quantitative details. You can organize a complex model into a hierarchy of such modules, with each diagram showing part of the model in a simple comprehensible form.

Chapter6 1.png

But, it's still possible to create impenetrable spaghetti!

Chapter6 2.png

These pages offer tips for creating lucid diagrams and module structures to make sure that your models are truly transparent. Key guidelines including how to size and arrange nodes, organize module hierarchies, and the judicious use of color. Options include which arrows to show, node sizes, colors, text size, and font family.

See Also

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