Being able to discover and manage your data are essential features of a modern Data Virtualization platform. The Denodo Platform offers a wealth a capabilities for discovering and managing data and metadata and provides advanced data governance functionality, such as data lineage and change impact analysis. This webinar will examine these capabilities. More information and FREE registrations to this webinar: http://goo.gl/8U4ynC To learn more click to this link: http://go.denodo.com/a2a Join the conversation at #Architect2Architect Agenda: Introspection and Metadata Management Global Search Data Governance

1. Five In-depth Technology and Architecture Sessions
on Data Virtualization
Session 4: Data Discovery & Governance

2. Today’s Speaker
Anastacio Molano
Head of Solutions and Business Development

3. Architect-to-Architect Series
■ Series of five webinars over 3 months
■ Deeper look into Denodo Platform
■ Architectural Overview
■ Performance
■ Scalability (today’s session)
■ Data Discovery and Governance
■ Security

4. Denodo Express
■ Denodo Express
■ Free to Download
■ Fully functioning Data Virtualization Platform
■ Single user, supports common data sources
■ Many of the same capabilities of Denodo
Platform
■ Performance, Data Discovery, Governance,
internal Security, Publishing, …

5. Data Discovery & Governance –
Architecture Modules

6. Data Discovery and Governance
■ Metadata Repository
■ Embedded Apache Derby database
■ Contains view and data source configuration data
■ Relationships between views – dependencies, etc.
■ Searchable – Catalog searches, etc.
■ Data Lineage
■ Trace how data changes between source and
consumer
■ Change Impact Analysis
■ What is the impact of a change in a data source
schema?

7. Data Discovery and Governance
■ RESTful Web Services
■ Supports Global Search functionality
■ Index and search data sources
■ ‘Google’ like search
■ Linked Data Services

8. Metadata Introspection
■ Denodo Platform gathers metadata from data
sources
■ Automatically or via configuration
■ Maps native data types to ‘Denodo types’
■ Inspects indexes in the sources
■ Analyzes source query capabilities and abstracts
them into common model
■ Stores all metadata and configuration data in
Metadata repository
■ Uses built-in Apache Derby database
■ Small size – only stores metadata…actual data is
retrieved in real time from sources or cache

9. Metadata Catalog
■ Two ways to inspect catalog
■ Graphically in Denodo Admin Tool
■ Search and browse contents of Metadata Repository
■ Filter by element type, name, date created, etc.
■ Drill down to view schema for individual elements
■ Programmatically
■ SQL Query using ‘list’ and ‘desc’ commands
■ e.g. ‘list views’ or ‘desc view address’
■ Stored procedures for complex catalog queries

10. Data Lineage
■ Graphical view for showing data lineage for any
field in any virtual view
■ Trace source of any
field
■ Includes any
functions applied to
field contents
■ Trace source of
calculated fields
■ View calculations
used to create new
fields

11. Used By Tool
■ Graphical view for showing where a view is
used
■ ‘Big picture’ view of
usage
■ Useful tool for seeing
impact of changes on
whole system

12. Change Impact Analysis
■ Denodo Platform can perform impact
analysis to show impact of data source
changes
■ Highlights changes to data source
■ Shows other views impacted by the change
■ i.e. derived views using the changed base view
■ Select which views you want to propagate
changes to…

13. Data Discovery – Global Search
■ Denodo Platform also supports data discovery
for non-Admin Tool users
■ Not all users have access to Admin Tool
■ Browser-based ‘global search’ provides simple
search mechanism
■ Keyword-based searches for intuitive discovery
process
■ Search metadata and data to find what you want
■ Browse schema or actual data
■ Traverse relationships between entities

14. Data Discovery – Under the Covers
■ Global Search uses Denodo Aracne’s indexer
to index data source contents
■ Based on Lucene indexer
■ Indexes stored in Denodo Platform
■ Searches run against indexes
■ Faster retrieval of ‘hits’ without overhead of full
scans on sources
■ Indexing can be scheduled
■ Denodo Scheduler runs indexing jobs
■ e.g. overnight when minimal impact

15. Data Discovery & Governance - Summary
■ Data discovery and governance is pervasive in
Denodo Platform
■ Users can inspect catalog of virtualization objects through
catalog search to find data combinations for reuse
■ Data lineage helps users to understand where data has
come from and how it has changed from the source
■ Impact analysis helps architects understand the
consequences of changes in the data source schemas
■ Propagate changes selectively with a single click
■ Global Search gives a full view of the Data Virtualization
project
■ Both data and metadata at the same time
■ Start from whole data sets, then drill down to individual data
rows
■ Point and click to traverse associations between entities and to
access related data

16. Q&A

17. Data Virtualization – Next Steps
Move forward at your own pace
 Download Denodo Express –
The fastest way to Data Virtualization
 Denodo Community: Documents, Videos, Tutorials, and more.
 Attend Architect-to-Architect Series
 Performance
 Scalability
Move forward with one of our Data
Virtualization experts
 Phone: (+1) 877-556-2531 (NA)
 Phone: (+44) (0)20 7869 8053 (EMEA)
 Email: info@denodo.com | www.denodo.com
 Data Discovery and Governance
 Security

18. Five In-depth Technology and Architecture Sessions
on Data Virtualization
Thank You!
Next Session
Session 5
Denodo Platform: Security