XRX: The Metadata Registry Example 21 October 2008 Jeremy Sutton Matt 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 Standards-based design Concepts: Web-based Semantics Enterprise vocabulary REST & Persistent URIs Tree database Every query as a service XML interoperability with other systems

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 Completion Date

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

Thank you!