NIEM IEPD Life Cycle and Tools

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Applied GJXDM Knowledge for Practical
Implementations
Catherine Plummer, SEARCH 2006 NAJIS
Conference September 20-22, 2006
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Information Sharing Project Goals and Objectives

• Define Exchanges and IEPDs to support
  interoperability among justice and public safety
  systems
• Constrain/restrict down to key choices to support
  interoperability
• Expand and refine GJXDM/NIEM through experienced
  feedback resolve vague definitions

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Goals of the JIEM - IEPD Process

• Produce models that help project stakeholders
• Provide a mechanism to synthesize domain/business
  knowledge of SMEs
• Support artifact reuse
• Leverage open standards
• Work with standards based tools that are readily
  available in the public domain
• Share lessons learned/best practices

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JIEM - IEPD Business Issues

• Business goals are the primary driver
• Participation by operational representatives
  (SMEs)
• Justice exchange data does not belong to only one
  domain
• Example Incident Report
• Reuse of artifacts
• Every JIEM - IEPD is a potential model

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Site Readiness Indicators

• Understanding of and commitment to information
  sharing
• Preliminary planning completed
• Agreement from stakeholders to participate
• Sufficient fiscal and human resources

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JIEM - IEPD Workgroup

• Representative group of exchange partners
• Inclusion of business SMEs and technical experts
• Selection of members is important
• IEPDs cannot be built by technical staff or
  business staff in isolation, partnership is
  critical
• Skilled, experienced facilitator important

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JIEM - IEPD Process
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GJXDM IEPDGuidelines

• Purpose and Scope
• List of Artifacts
• XML Schemas
• GJXDM Subset Schema, Constraint Schema, Extension
  Schema, Document Schema
• Additional Exchange Provisions
• Minimal data set, additional business rules, etc.
• Samples
• XML document instances, XSL style sheets
• Development
• Participants, process, artifacts
• Testing and Conformance
• Feedback

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Contents of an IEPD
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Domain Modeling UML

• Precise and formal, yet
• Graphical and understandable by stakeholders
• Supports O/O concepts inherent in XML Schema
• Supported by low-cost tools
• Industry/developer buy-in and adoption

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Domain Modeling Incident Report
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Mapping to GJXDM

• To build schema, each class/property in the
  domain model must be mapped to a type/element in
  GJXDM
• Sometimes mapping can be represented in path-like
  notation
• Sometimes it can only be described in prose
• Makes automated mapping (and schemas generated
  from the domain model) very difficult
• Sometimes domain concepts are missing from GJXDM
  these are mapped to elements in an extension
  schema (your own namespace)

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Mapping to GJXDM

• Spreadsheet with four columns
• Class
• Property or Association
• GJXDM Mapping (path or prose, extensions
  color-coded)
• Notes

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(No Transcript)
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How JIEM and SSGT interoperate
SSGT Mapping Tool
JIEM
Schema Subset Generation Tool (SSGT)
Mapping Report
Wantlist
SSGT
.XMI
ArgoUML
Subset.zip
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Moving Forward

• Export other dimensions beyond information
  dimension in standard open specification (e.g.
  BPMN, etc.)
• Evaluate applicability to other domains and NIEM
• Capture additional metadata (security, privacy,
  etc.) to support SOA
• Support generation of extension and constraint
  schemas
• Support sharing/reuse of mappings, wantlists, and
  schemas across JIEM exchanges and site DBs.
• Support sharing/reuse with other non-JIEM users
  through standard import/export specifications
  (the NIEM IEPD specification is well suited for
  this).

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Moving Forward

• Remember the goal is to exchange messages, not
  to build databases
• The more we standardize the container and the
  payload of components, the more it supports our
  goals
• Standard, non-proprietary, consistently
  structured artifacts helps all of us to leverage
  JIEM and IEPD models for information sharing

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Look Before You Create

• Someone may have already done it
• Someone may be working on it
• Someone may be thinking about it
• IEPD Clearinghouse, http//it.ojp.gov/iepd/
• Be sure to register your project

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QA
XML?
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Thank you!

• Catherine Plummer
• SEARCH, The National Consortium
• for Justice Information and Statistics
• 916-392-2550 x 301
• catherine_at_search.org

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• Screen shots

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Schema Subset Generation Tool(SSGT)

• SSGT is a Web application that allows a user to
  browse the GJXDM and create GJXDM schema subsets
  and their wantlists.
• Supports basic and advanced search for GJXDM
  components.

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SSGT Expand aType or Property

• A complex type can be expanded to see its
  properties.
• A property can be expanded to see its types
  properties.

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SSGT Types

• User clicks a type to see its
• definition
• base types
• derived types
• properties
• properties that it is the type of

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SSGT Properties

• User clicks a property to see its
• definition
• types in which its contained
• its types.

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SSGT SelectProperties and Types

• Properties and types can be selected for
  inclusion in the GJXDM schema subset.

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SSGT Generate Subset.zip

• Generating a GJXDM schema subset, creates a .zip
  file containing both the subset and and its
  corresponding wantlist.

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SSGT Save and Load Wantlists

• Wantlists can be saved and loaded so that work
  can be suspended and resumed.