MISMO Architecture

1
MISMO Architecture

• It is all about Adoption
• Greg Alvord
• Gallagher Financial Systems

2
Looking Back and Forward

• Version 1.x -- One structure for all.
• Version 2.x -- Structure for each built from
  common pool of fields ( attributes)
• Version 3.x Pull what is shared together.

3
Version 2.x Product Process

• Process Group
• Selects fields from common pool.
• Submits new fields to Core Data
• Creates Structure DTD by hand (Usually)
• Creates LDD by hand (Enter fields into MISMO
  Tool)
• Core data reviews and approves (No inspection
  tools)
• Architecture reviews and approves (No tools)

4
Version 3.x Justification

• Assumption Quality Standards Product enhances
  Adoptability.
• Escape the limitations of DTD
• Reuse by cut and paste (error prone publications)
• No formal link between LDD and DTD ( error prone
  publications)

5
Version 3.x Justification

• W3C XML Schema is XML
• Automated processes
• Better tools available
• Manipulated with XML tools.
• XSD?XSLT?LDD HTML
• Links Publication of structure and content

6
Version 3.x Justification

• Better Extensibility
• V 2.x Extensions Complex and therefore are under
  adopted

7
Schema Myths

• Schema is complex (Wrong in our case!)
• Our structures are simple
• Now represented by DTD
• Schema to represent these structures are simple.
• Schema

8
Schema Myths

• XML Files will get bigger (Wrong!)
• DTD and XSD both describe the same thing.
• Version 2 Schema and DTD both validate the SAME
  XML.

9
Version 3.x Steps

• Make a schema representation for each LDD entry
  (Done)
• Assign each LDD Entry a data type (Done,
  reviewing)
• Pull Common fields together into Attribute
  Groups (In process)
• Pull Common Structure together (In Process)
• Construct 2.x transactions from these pieces.

10
Version 3.x Barriers to Adoption

• Desire to do too much
• Over use data types
• Good data type use Date Formats
• Bad data type use Punctuation, Field Length
• Change attribute names
• Smaller files
• Huge implementation problem for 2.x and 3.x
  peaceful coexistence