Joe Caserta's presentation on data lakes highlights the balance between data governance and innovation, emphasizing the importance of effective data management practices in modern analytics. He discusses the evolution of data analytics and the shift from traditional methods to more dynamic and scalable approaches enabled by big data technologies. The presentation also addresses the challenges of data sprawl and the necessity of strong governance frameworks to ensure data quality and usability in enterprise environments.

1. @joe_Caserta
The Data Lake
Balancing
Data Governance
and
Innovation
Presented by:
Joe Caserta
DAMA
DAMA-Day
2016 Symposium
Thursday, May 19, 2016

2. @joe_Caserta

3. @joe_Caserta
Caserta Timeline
Launched Big Data practice Co-author, with Ralph Kimball, The Data
Warehouse ETL Toolkit (Wiley)
Data Analysis, Data Warehousing and Business
Intelligence since 1996
Began consulting database programing and
data modeling 25+ years hands-on experience building
database solutions
Founded Caserta Concepts in NYC
Web log analytics solution published in
Intelligent Enterprise
Launched Data Science, Data Interaction and
Cloud practices Laser focus on extending Data Analytics with
Big Data solutions
1986
2004
1996
2009
2001
2013
2012
2014
Dedicated to Data Governance Techniques on
Big Data (Innovation)
Awarded Top 20 Big Data
Companies 2016
Top 20 Most Powerful Big Data
consulting firms
Launched Big Data Warehousing (BDW)
Meetup NYC: 2,000+ Members
2016 Awarded Fastest Growing Big Data
Companies 2016
Established best practices for big data
ecosystem implementations

4. @joe_Caserta
About Caserta Concepts
• Consulting Data Innovation and Modern Data Engineering
• Award-winning company
• Internationally recognized work force
• Strategy, Architecture, Implementation, Governance
• Innovation Partner
• Strategic Consulting
• Advanced Architecture
• Build & Deploy
• Leader in Enterprise Data Solutions
• Big Data Analytics
• Data Warehousing
• Business Intelligence
• Data Science
• Cloud Computing
• Data Governance

5. @joe_Caserta

6. @joe_Caserta
The Future of Data is Today
As a Mindful Cyborg, Chris
Dancy utilizes up to
700 sensors, devices,
applications, and services to
track, analyze, and optimize as
many areas of his existence.
Data quantification enables
him to see the connections of
otherwise invisible data,
resulting in dramatic upgrades
to his health, productivity, and
quality of life.

7. @joe_Caserta
The Evolution of Data Analytics
Descriptive
Analytics
Diagnostic
Analytics
Predictive
Analytics
Prescriptive
Analytics
What
happened?
Why did it
happen?
What will
happen?
How can we make
It happen?
Data Analytics Sophistication
BusinessValue
Source: Gartner
Reports  Correlations  Predictions  Recommendations
Cognitive Computing / Cognitive Data Analytics

8. @joe_Caserta
Traditional Data Analytics Methods
• Design – Top Down, Bottom Up
• Customer Interviews and requirements gathering
• Data Profiling
• Create Data Models
• Facts and Dimensions
• Extract Transform Load (ETL)
• Copy data from sources to data warehouse
• Data Governance
• Stewardship, business rules, data quality
• Put a BI Tool on Top
• Design semantic layer
• Develop reports

9. @joe_Caserta
A Day in the Life
• Onboarding new data is difficult!
• Rigid Structures and Data Governance
• Disconnected/removed from business requirements:
“Hey – I need to analyze some new data”
 IT Conforms and profiles the data
 Loads it into dimensional models
 Builds a semantic layer nobody is going to use
 Creates a dashboard we hope someone will notice
..and then you can access your data 3-6 months later to see if it has value!

10. @joe_Caserta
Houston, we have a Problem: Data Sprawl
• There is one application for every 5-10 employees generating copies of
the same files leading to massive amounts of duplicate idle data strewn all
across the enterprise. - Michael Vizard, ITBusinessEdge.com
• Employees spend 35% of their work time searching for information...
finding what they seek 50% of the time or less.
- “The High Cost of Not Finding Information,” IDC

11. @joe_Caserta

12. @joe_Caserta

13. @joe_Caserta
OLD WAY:
• Structure  Ingest  Analyze
• Fixed Capacity
• Monolithic
NEW WAY:
• Ingest  Analyze  Structure
• Dynamic Capacity
• Ecosystem
RECIPE:
• Data Lake
• Cloud
• Polyglot Data Landscape
The Paradigm Shift
Big Data is not the problem,
It’s the Change Agent

14. @joe_Caserta
Enrollments
Claims
Finance
ETL
Ad-Hoc Query
Horizontally Scalable Environment - Optimized for Analytics
Data Lake
Canned Reporting
Big Data Analytics
NoSQL
DatabasesETL
Ad-Hoc/Canned
Reporting
Traditional BI
Spark Python Hive
N1 N2 N4N3 N5
Hadoop Distributed File System (HDFS)
Traditional
EDW
Others…
The Evolution of Data Analytics
Data Science

15. @joe_Caserta
Innovation is the only sustainable competitive advantage a company can have
Innovations may fail, but companies that don’t innovate will fail

16. @joe_Caserta

17. @joe_Caserta
What’s Old is New Again
 Before Data Warehousing Governance
 Users trying to produce reports from raw source data
 No Data Conformance
 No Master Data Management
 No Data Quality processes
 No Trust: Two analysts were almost guaranteed to come up with two
different sets of numbers!
 Before Data Lake Governance
 We can put “anything” in Hadoop
 We can analyze anything
 We’re scientists, we don’t need IT, we make the rules
 Rule #1: Dumping data into Hadoop with no repeatable process, procedure, or data governance
will create a mess
 Rule #2: Information harvested from an ungoverned systems will take us back to the old days: No
Trust = Not Actionable

18. @joe_Caserta
Technology:
• Scalable distributed storage  Hadoop, S3
• Pluggable fit-for-purpose processing  Spark, EMR
Functional Capabilities:
• Remove barriers from data ingestion and analysis
• Storage and processing for all data
• Tunable Governance

19. @joe_Caserta

20. @joe_Caserta
•This is the ‘people’ part. Establishing Enterprise Data Council, Data Stewards, etc.Organization
•Definitions, lineage (where does this data come from), business definitions, technical
metadataMetadata
•Identify and control sensitive data, regulatory compliancePrivacy/Security
•Data must be complete and correct. Measure, improve, certifyData Quality and Monitoring
•Policies around data frequency, source availability, etc.Business Process Integration
•Ensure consistent business critical data i.e. Members, Providers, Agents, etc.Master Data Management
•Data retention, purge schedule, storage/archiving
Information Lifecycle
Management (ILM)
Components of Data Governance

21. @joe_Caserta
•This is the ‘people’ part. Establishing Enterprise Data Council, Data Stewards, etc.Organization
•Definitions, lineage (where does this data come from), business definitions, technical
metadataMetadata
•Identify and control sensitive data, regulatory compliancePrivacy/Security
•Data must be complete and correct. Measure, improve, certifyData Quality and Monitoring
•Policies around data frequency, source availability, etc.Business Process Integration
•Ensure consistent business critical data i.e. Members, Providers, Agents, etc.Master Data Management
•Data retention, purge schedule, storage/archiving
Information Lifecycle
Management (ILM)
Components of Data Governance
• Add Big Data to overall framework and assign responsibility
• Add data scientists to the Stewardship program
• Assign stewards to new data sets (twitter, call center logs, etc.)
• Graph databases are more flexible than relational
• Lower latency service required
• Distributed data quality and matching algorithms
• Data Quality and Monitoring (probably home grown, drools?)
• Quality checks not only SQL: machine learning, Pig and Map Reduce
• Acting on large dataset quality checks may require distribution
• Larger scale
• New datatypes
• Integrate with Hive Metastore, HCatalog, home grown tables
• Secure and mask multiple data types (not just tabular)
• Deletes are more uncommon (unless there is regulatory requirement)
• Take advantage of compression and archiving (like AWS Glacier)
• Data detection and masking on unstructured data upon ingest
• Near-zero latency, DevOps, Core component of business operations
For Big Data

22. @joe_Caserta
Process Architecture
Communication
Organization
IFP
Governance
Administration
Compliance
Reporting
Standards
Value Proposition
Risk/Reward
Information
Accountabilities
Stewardship
Architecture
Enterprise Data
Council
Data Integrity
Metrics
Control Mechanisms
Principles and
Standards
Information Usability
Communication
Big Data Governance provides vision, oversight and accountability for
leveraging corporate information assets to create competitive advantage, and
accelerate the vision of integrated delivery.
Value Creation
• Acts on Requirements
Build Capabilities
• Does the Work
• Responsible for adherence
Governance
Committees
Data Stewards
Project Teams
Enterprise Data
Council
• Executive Oversight
• Prioritizes work
Drives change
Accountable for results
Definitions
The People Part of Data Governance

23. @joe_Caserta
Govern
Speed
Access
Ensure
• Govern/Secure Data
• Make Accessible/Available
• Ensure Quality
• Instant Delivery
The CDO Quandary

24. @joe_Caserta
Data Munging Versus Reporting
Data Governance
AvailabilityRequirement
Fast
Slow
Minimum Maximum
Does Data munging in a data science
lab need the same restrictive
governance and enterprise reporting?

25. @joe_Caserta
The Big Data Pyramid
Ingest Raw
Data
Organize, Define,
Complete
Munging, Blending
Machine Learning
Data Quality and Monitoring
Metadata, ILM , Security
Data Catalog
Data Integration
Fully Governed ( trusted)
Arbitrary/Ad-hoc Queries and
Reporting
Big
Data
Warehouse
Data Science Workspace
Data Lake – Integrated Sandbox
Landing Area – Source Data in “Full Fidelity”
Usage Pattern Data Governance
Metadata, ILM,
Security

26. @joe_Caserta
Big
Data
Warehouse
Data Science Workspace
Data Lake – Integrated Sandbox
Landing Area – Source Data in “Full Fidelity”
The Data Refinery
• The feedback loop between Data Science, Data Warehouse and Data Lake is
critical
• Ephemeral Data Science Workbench
• Successful work products of science must Graduate into the appropriate layers
of the Data Lake
Cool New
Data
New
Insights
Governance
Refinery

27. @joe_Caserta
Define and Find Your Data
• Data Classification
• Import/Define business taxonomy
• Capture/Automate relationships between data sets
• Integrate metadata with other systems
• Centralized Auditing
• Security access information for every application with data
• Operational information for execution
• Search & Lineage (Browse)
• Predefined navigation paths to explore data
• Text-based search for data elements across data ecosystem
• Browse visualization of data lineage
• Security & Policy Engine
• Rationalize compliance policy at run-time
• Prevent data derivation based on classification (re-classification)
Key Requirements
• Automatic data-
discovery
• Metadata tagging
• Classification

28. @joe_Caserta
Caution: Assembly Required
 Some of the most hopeful tools are brand new or in
incubation!
 Enterprise big data implementations typically combine
products with custom built components
Tools
People, Processes and Business commitment is still critical!
Data Integration Data Catalog & Governance Emerging Solutions

29. @joe_Caserta
Existing On-Premise Solution
• Challenges with operations of data servers in Data Center
• Increasing infrastructure complexity
• Keeping up with data growth
Cloud Advantages
• Reduced upfront capital investment
• Faster speed to value
• Elasticity
“Those that go out and buy expensive
infrastructure find that the problem scope and
domain shift really quickly. By the time they get
around to answering the original question, the
business has moved on.” - Matt Wood, AWS
Move to the Cloud?

30. @joe_Caserta
Come out and Play
CIL - Caserta
Innovations Lab
Experience
Big Data Warehousing Meetup
• Meet monthly to share data best
practices, experiences
• 3,800+ Members
http://www.meetup.com/Big-Data-Warehousing/
http://www.slideshare.net/CasertaConcepts/
Examples of Previous Topics
• Data Governance, Compliance &
Security in Hadoop w/Cloudera
• Real Time Trade Data Monitoring
with Storm & Cassandra
• Predictive Analytics
• Exploring Big Data Analytics
Techniques w/Datameer
• Using a Graph DB for MDM &
Relationship Mgmt
• Data Science w/Claudia
Perlcih & Revolution Analytics
• Processing 1.4 Trillion Events
in Hadoop
• Building a Relevance Engine
using Hadoop, Mahout & Pig
• Big Data 2.0 – YARN Distributed
ETL & SQL w/Hadoop
• Intro to NoSQL w/10GEN

31. @joe_Caserta
Thank You / Q&A
Joe Caserta
President, Caserta Concepts
joe@casertaconcepts.com
@joe_Caserta

32. @joe_Caserta
The Data Scientist Winning Trifecta
Modern Data
Engineering/Data
Preparation
Domain
Knowledge/Business
Expertise
Advanced
Mathematics/
Statistics

33. @joe_Caserta
Electronic Medical Records (EMR) Analytics
Hadoop Data LakeEdge Node
`
100k
files
variant 1..n
…
variant 1..n
HDFS
Put
Netezza DW
Sqoop
Pig EMR
Processor
UDF
Library
Provider table
(parquet)
Member table
(parquet)
Python Wrapper
Provider table
Member table
Forqlift
Sequence
Files
…
variant 1..n
Sequence
Files
…
15 More
Entities
(parquet)
More
Dimensions
And
Facts
• Receive Electronic Medial Records from various providers in various formats
• Address Hadoop ‘small file’ problem
• No barrier for onboarding and analysis of new data
• Blend new data with Data Lake and Big Data Warehouse
• Machine Learning
• Text Analytics
• Natural Language Processing
• Reporting
• Ad-hoc queries
• File ingestion
• Information Lifecycle Mgmt