Transcript
VisiRule
An overview of the VisiRule™ decision logic charting tool from LPA
Contents
Introduction Motivation Examples Integration Summary
A simple VisiRule chart …
… generates executable code
And run it!
What is VisiRule?
Unlike other visual modelling tools, VisiRule™ is specifically designed for building robust decision models
VisiRule decision models are easy for anyone to make and share because they are created graphically, in a similar way to MindMap
Unlike other computer tools that can interpret and execute visual models, VisiRule ensures users create models with "referential integrity" - always consistent
VisiRule models can be exported to other programs
What is VisiRule?
“VisiRule is not designed to automatically construct visual models or executable code from data, rather it is a tool that allows experts to build decision models using a graphical paradigm, like MindMap, but one that can be annotated using code and or Boolean logic and then executed and exported to other programs and processes.”
What is VisiRule?
Graphical tool for drawing decision logic Lay-out logic flow Execute logic in-situ Check and debug results Generate and export code
Who is VisiRule for?
Domain experts involved with specifying and modelling knowledge processes
People involved with automated decision making
Typical sectors – legal, banking, finance, electrical, diagnostics
What does VisiRule do?
Lets you draw charts Lets you explore logic Lets you generate code Lets you export XML Lets you test outcomes Lets you produce shareable pictures WMFs
Why VisiRule?
Easy-to-use Intuitive representation Immediate testing and debugging Integration with IT architecture Small footprint – readily available Reliable and verifiable
VisiRule Outputs
Charts as shareable diagrams Code for exporting and embedding Text for exporting, editing and exploring Possible test suite Possible audit trail
3-layers of access
VisiRule creates charts (layer 1) VisiRule generates Flex code (LPA ‘s Expert
System Product) (layer 2) Flex code in turn generates Prolog (layer 3) The underlying Prolog allows you to do
almost anything, including call C functions using a built-in predicate called winapi/4
Goals of VisiRule
Makes technology available to non-programmers
Question and answer-based processes can be rapidly tested and deployed
Run-time architecture integrates into existing web and desktop standards
A Multi-tiered Toolset
VisiRule
Flex
WinProlog
Integration with VB, Delphi, ODBC
Engine and integration
ProWebCGI
WebFlex
ProDataODBCXML
LPAIntelligence
Server
Prologengine
Run-time deployment
WWW
Prolog GUI
VB,JavaC# .Net
Run-timeengine
VisiRule
Point ‘n Click to add new objects Delete link and associated objects Edit expressions in-line Automatic aggregation for menus Analysis of logic flow
Intelligent Design Tool
Automatic linking/de-linking of objects Horizontal/vertical alignment Horizontal/vertical spacing Syntax checker for expressions & code Show/don’t show information fields
A Simple Worked Example
New empty chart Create the Nodes Link the Nodes Generate and Test the Code
Examples
Using VisiRule, we can draw a simple chart, Fig. 1, where each expression box evaluates a compound logic expression
An empty chart
Add a start node
Add a question
Add some expressions
Add some end nodes
Add links & Generate the Code
Run the Code
Answer the question …
… and get the answer
Another Worked Example
2 binary questions 4 outcome nodes Compound logic in expressions
An empty chart
Add a question
Another question
Add some expressions
Edit the expressions
Add the end nodes
Link and finish
Another Worked Example
2 binary questions 4 outcome nodes Compound logic in expressions
Holiday Entitlement
Holiday Entitlement
Holiday Entitlement
Holiday Entitlement
Holiday Entitlement
Holiday Entitlement
Holiday Entitlement
Holiday Entitlement
Various Nodes Types
Question nodes Expression nodes Statement Boxes Code Boxes Start and End nodes
Different kinds of Nodes
Structured Expression Boxes
A Simple Statement Box
Another Statement Box
Another Statement Box
Continuation Box
Convergence
Exporting XML
Exporting WMF
Publishing on the Web
Generate the Paths
There are 8 unique ways of traversing the Loans.vsr chart
Future Plans
Support for loops Smarter graphics Simpler charts Modular sub-charts (re-useable components)
Importing XML Integration with Visio
The End
Go to the LPA web-site and download a 28-day Free Trial [help yourself]
Contact LPA if you want a full evaluation download system [more modules, longer tim-frame]
Go visit: www.lpa.co.uk
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