The Darwin Theory of Data Modeling

Transcription

1 The Darwin Theory of Data Modeling Which of these two peppered moths represent the Data Modeler of 2020? Why does Steve Hoberman know the future? It s time to buy this stock 1

2 Five Adaptations Data Modelers will need to make by Become a Data Structure Scientist 2. Ride the wave caused by the Perfect Storm 3. Learn a Graph or Document database 4. Master a Fact Based Modeling (FBM) dialect 5. Build and Maintain the Enterprise LDM Data Modeler 2020 #1 Adaptation: Become a Data Structure Scientist Data Modeler sounds sooo confining. 2

3 The first official data modeler: Leonhard Euler (1735) Seven Bridges of Königsberg Seven Bridges of Königsberg First white paper on: Graph Theory Network Theory Topology Data Modeling Simple yet precise 3

4 Data Modeling is a process of representing real world complexity in a precise and simple form (the data model), to solve important problems (meet business challenges) Simple yet precise What am I doing? Enterprise Data Model Business Intelligence Conformed Dimensions DG Glossary CDM which shows overlaps and inconsistencies I am applying data modeling in non-traditional ways (becoming a Data Structure Scientist) 4

5 #2 Adaptation: Ride the wave caused by the Perfect Storm Perfect storm: Agile, Cloud, and Big Data 5

6 Ride the wave by becoming more agile Elicit Ask more questions Increase precision Document What am I doing? Who? What? When? Where? Why? How? Customer Account Account Open Date Branch Check Debit Deposit Credit Interest Credit Monthly Stmt Fee Withdrawal Debit Check Deposit Slip Withdrawal Slip Bank Account Stmt Account Balance Introducing templates: Conceptual Entity Template 6

7 What am I doing? Question CanaCustomerownmorethanoneAccount? CananAccountbeownedbymorethanoneCustomer? Can a Customer exist without an Account? Can an Account exist without a Customer? Are there examples of Customer that would be valuable to show? Are there examples of Account that would be valuable to show? Does a Customer go through a lifecycle? Does an Account go through a lifecycle? Can a Branch contain more than one Account? CananAccountbelongtomorethanoneBranch? Can a Branch exist without an Account? Can an Account exist without a Branch? Are there examples of Branch that would be valuable to show? Does a Branch go through a lifecycle? Introducing templates: Conceptual Relationship Template Yes No What am I doing? Entity A Entity B Entity C Introducing templates: Logical Attribute Brainstorming Template 7

8 Ride the wave by becoming a DBA ( Database Architect ) RDBMS NoSQL What am I doing? RDBMS NoSQL Building decision trees 8

9 Ride the wave by sharpening your influencing skills This is why the data modeler should be a member of the agile team Build the conceptual data model because The logical is even more important with NoSQL projects because What am I doing? Softer skills at DMZ 9

10 Come to the Dark Side, we have cookies! Come to the Dark Side, we have cookies NoSQL! 10

11 #3 Adaptation: Learn a Graph or Document database How to forward and reverse engineer We can simplify and organize Graph Theory (1735) Set Theory (1870) Hierarchy Theory (1880) Choose Graph or Document Recommendation Neo4j (Graph) MongoDB (Document) What am I doing? Language Format Translated into Appear in Author Title Write Be related to Title Subject Document (Recommendation: MongoDB) Document-oriented (Library Card Catalog) UML Database Modeling Workbook Extreme Scoping Data Modeling Made Simple By Steve Hoberman In English Print version Subjects: Database Design, Data Warehousing, Data Architecture Learned MongoDB 11

12 What am I doing? Graph Document-oriented (Recommendation: (Library Card Catalog) Neo4j) Will be learning Neo4j in 2015 #4 Adaptation: Master a Fact Based Modeling (FBM) dialect Floor 1 exists. Floor 1 has 2 emergency exits. Room 1.1 has 20 seats. Room 1.1 is equipped with the facility PC. 12

13 What am I doing? DMZ topics, plus Terry s next 2 books #5 Adaptation: Build and Maintain the Enterprise LDM 13

14 #5 Adaptation: Build and Maintain the Enterprise LDM Project RDBMS and some NoSQL Enterprise Project Some NoSQL CDM (ERD) CDM (ERD) LDM (ERD) LDM (ERD) LDM (FBM) PDM (ERD) Imp What am I doing? Contact Receive Reside in Location Be the storage place for Shipment Inventory Be included in Be the result of Kept in Thought Leader Customer Author Purchase Lead to Compensated with Royalty Initiate Be the subject of Book Consumer Bookstore Wholesaler Distributor Partner Receive complimentary in exchange for promotion Applying concepts to Technics Pub 14

15 Five Adaptations Data Modelers will need to make by Become a Data Structure Scientist 2. Ride the wave caused by the Perfect Storm 3. Learn a Graph or Document database 4. Master a Fact Based Modeling (FBM) dialect 5. Build and Maintain the Enterprise LDM Data Modeler 2020 The Darwin Theory of Data Modeling Any questions or comments? What are your predictions? me@stevehoberman.com 15