Become Agile with Data Modeling

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Become Agile with Data Modeling

by

Rick F. van der LansR20/Consultancy BVTwitter @rick_vanderlanswww.r20.nl

Copyright © 1991 - 2015 R20/Consultancy B.V., The Hague, The Netherlands 2

Everything About Data has Changed


We Live in the Big Data Era


New Data Storage Technologies


Applications Come and Go

Application 1

Application n

Application 6

Application 5 Application 4

Application 3

Application 2


Data in the Hands of the Users

Self-Service

Reporting

Self-Service Analytics

Self-Service ETL

Self-Service Cleansing

Self-Service …


Lost Without a Data Model


Why Data Models?

A data model describes what data means, what the relationships are, what the characteristics of data are, and so on

What does this mean: <John, December 15, 1999>

Data without a data model is like words without a dictionary

A data model is the Rosetta Stone to understand data correctly


NoSQL Requires Data Modeling As Well

ID VALUE

75295<employee>

<number>6</number>

<name> <lastname>Parmenter</lastname>

<initials>R</initials>

</name>

<address> <street>Haseltine Lane</street>

<houseno>80</houseno>

<postcode>1234KK</postcode>

<town>Stratford</town>

</address>

</employee>

10381

9

<employee>

<number>7</number>

<name> <lastname>Metheny</lastname>

<initials>P</initials>

</name>

<address> <street>Brownstreet</street>

<houseno>80</houseno>

<province>ZH</province>

<town>Boston</town>

</address>

</employee>

13217

1

<employee>

<number>15</number>

<name> <lastname>Metheny</lastname>

<initials>P</initials>

<code>45</code>

</name>

</employee>

Multi-structured table


A Data Model is More Than a Diagram

Textual definitions

List of synonyms

Textual descriptions

Integrity rules related to data quality

Business glossary

Security rules


A Data Model is Pivotal

For business users to develop their own reports

For business users to analyze reports and results

For developers to develop new big data applications to understand the structure of the data

For BI specialists to integrate data from multiple systems to present a correct 360 degrees view of customers

For data stewards to determine the correctness of data

For many more …


Data Modeling Old Style


Four Requirements for Agile Data Modeling

Data storage agnostic

Collaboration

Business glossary

Flexible data model


1. Data Storage Technology Agnostic

Dealing with many different data storage technologies

Dealing with Polyglot Persistence

Application 1

SQL

Application 2

Hadoop

Application 3

NoSQL

Application 4

…



Rich set of data model concepts

Forward engineering

Reverse engineering



SQLHadoop

NoSQL


2. Agile Data Modeling is Collaboration

Data stewards

Business analysts

Business users

Data architects / modelers


Versioning of Data Model (Components)


Comparing Data Models


Fine-Grained Check-in and Check-out


3. Business Glossary


Searching for Business Objects


An Integrated Business Glossary


4. Flexible Data Model

see http://www.agiledata.org/essays/dataModeling101.html


A Flexible Data Model

Membercategory

Subscription Junior/Senior

Librarymember

Membercategory

Subscription Junior/Senior

Librarymember


Concluding Remarks

Everything about data has changed

The data model has become pivotal for a larger audience

Agile data modeling is pivotal

Agile data modeling tools must support:• Data storage agnostic

• Collaboration features

• Business glossary

• Flexible data model


Resources

New white paper on Agile Data Modeling• http://forms.embarcadero.com/AgileDataModelingWP

Learn more about the ER/Studio product family• http://www.embarcadero.com/data-modeling

To arrange a demo, please contact Embarcadero Sales• http://forms.embarcadero.com/forms/ERStudioProductInterest

Save the Date: April 30, 2015• Learn about upcoming features for ER/Studio’s next release

• http://forms.embarcadero.com/ERStudioNewRelease

http://forms.embarcadero.com/AgileDataModelingWP

http://www.embarcadero.com/data-modeling

http://forms.embarcadero.com/forms/ERStudioProductInterest

http://forms.embarcadero.com/ERStudioNewRelease

Become Agile with Data Modeling

Software

data means

data modelingbyrick

data correctlycopyright

data models

characteristics of data

dictionarya data model

big data eracopyright

new big data applications