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XRX: The Metadata Registry Example

XRX: The Metadata Registry Example. 21 October 2008 Jeremy Sutton Matt Steele. Introduction. Both of us work for Genesis10’s CAP program and are currently consulting at a local financial services organization. Jeremy Sutton Saint John’s University 2008 – Computer Science

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XRX: The Metadata Registry Example

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  1. XRX:The Metadata Registry Example 21 October 2008 Jeremy SuttonMatt Steele

  2. Introduction Both of us work for Genesis10’s CAP program and are currently consulting at a local financial services organization. • Jeremy Sutton • Saint John’s University 2008 – Computer Science • Technical analyst working on Metadata Registry • Matt Steele • Saint John’s University 2008 – International Relations / Economics • Business/data analyst working on knowledge capture and metadata for a data warehouse • Pushing to expand the use of the Metadata Registry

  3. Metadata Registry

  4. Concepts: Web-based Semantics Enterprise vocabulary REST & Persistent URIs Tree database Every query as a service XML interoperability with other systems Standards-based design

  5. XForms: Screen Capture

  6. XForms: Advanced interface features • AJAXy features without the mess • “Suggest” example:

  7. XForms: Easy interface development Example: Date picker is one line of code; no javascript needed <xf:bind nodeset="instance('my-task')/Completion-Date" type="xs:date"/> <xf:input ref="instance('my-task')/completion-date" bind="closed”> <xf:label>Completion Date</xf:label> </xf:input>

  8. XQuery Example: Glossary report

  9. Learning experience • Resources XForms XQuery

  10. First CRUD (create/read/update/delete) • Deconstructed existing project (task manager) to base components to understand the architecture • Built a blog application • Took one week

  11. Limitations • Browser support • Plugins are needed to work with current browsers • Firefox add-in works elegantly • Internet Explorer 6 requires Picoforms • Client-side java-based interpreters exist but are bulky • Not widely known • Standards are new • Pushes against conventional apps, relational databases, etc • Limited commercial examples

  12. Advantages • Simple to learn • See results very quickly • Very powerful searching with minimal code • Does not use RDB architecture • Open XML platform for data I/O • Easily adaptable to many tool needs • Logical organization of data (hierarchies, URIs) • Easily de-buggable • Easy web apps

  13. Thank you!

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