1. Data Modeling Basics

2. GENERAL PROGRESSION DEVELOP BASIC MODEL ENHANCE BASIC MODEL REFINE THE MODEL VALIDATE THE MODEL

3. DATA ANALYSIS "WHAT THERE IS“ WHAT INFORMATION IS REQUIRED BY THE BUSINESS

4. ACTIVITY ANALYSIS "WHAT IS DONE“ WHAT ACTIVITIES MAKE UP THE BUSINESS

5. SUBJECT AREAS A NATURAL SUBDIVISION OF AN ENTERPRISE CENTERED ON A MAJOR RESOURCE OR ACTIVITY OF THE ENTERPRISE PERSONNEL CUSTOMERS PRODUCTS VENDORS RAW MATERIAL

6. ENTITY TYPES TYPES OF THINGS THE BUSINESS NEEDS TO OPERATE A COLLECTION OF OBJECTS WITH A COMMON DEFINITION AND LIKE CHARACTERISTICS NAMES OF ENTITY TYPES ARE ALWAYS SINGULAR NOUNS: EMPLOYEE PRODUCT SHIPMENT CUSTOMER LOCATION CAR

7. ENTITY AN ENTITY IS A FUNDAMENTAL THING OF RELEVANCE TO THE ENTERPRISE ABOUT WHICH DATA MAY BE KEPT AN ENTITY IS A SINGLE OCCURRENCE OF AN ENTITY TYPE ENTITY TYPE: EMPLOYEE ENTITY: MARY JOHNSON JACK ALLEN GENE SMITH

8. RELATIONSHIPS ASSOCIATIONS BETWEEN ENTITY TYPES A REASON OF RELEVANCE TO THE ENTERPRISE FOR ASSOCIATING ENTITIES FROM ONE OR TWO ENTITY TYPES ENTITY TYPE #1:EMPLOYEE ENTITY TYPE #2:FACTORY RELATIONSHIP:works in EMPLOYEE works in FACTORY FACTORY receives work of EMPLOYEE

9. ATTRIBUTES FACTS ABOUT ENTITIES THAT ARE USEFUL TO THE BUSINESS CHARACTERISTICS OF AN ENTITY TYPE THAT ARE IMPORTANT TO THE BUSINESS ENTITY TYPE:EMPLOYEE ATTRIBUTES: NAME ADDRESS BIRTHDATE SERVICE DATE SALARY

10. ELEMENTS OF AN ERD (ENTITY RELATIONSHIP DIAGRAM) ENTITY TYPE RELATIONSHIPS ATTRIBUTE

11. ELEMENTS OF AN ERD ENTITY TYPE A FUNDAMENTAL THING OF RELEVANCE TO THE ENTERPRISE ABOUT WHICH FACTS CAN BE KEPT AND WHICH IS INVOLVED IN RELATIONSHIPS WITH OTHER ENTITY TYPES. RELATIONSHIPS AN ASSOCIATION OF INTEREST BETWEEN ENTITY TYPES; THE RATIONALE FOR ASSOCIATING ENTITIES OF DIFFERENT TYPES. ATTRIBUTE A CHARACTERISTIC OF AN ENTITY TYPE. INDIVIDUAL DETAILS ASSIGNED TO EACH ENTITY.

12. ENTITY TYPES NAMES USER SUPPLIES TO ANALYST USER TERMS CLEAR AND CONCISE DO NOT ABBREVIATE SINGULAR UNIQUE ALIAS

13. FINDING ENTITY TYPES INTERVIEWS BUSINESS DOCUMENTS FILES

14. RELATIONSHIP AN ASSOCIATION BETWEEN ENTITY TYPES ENTITY _____ BUSINESS ______ ENTITY TYPE REASON TYPE PATRON -------- RENTS -------- TAPE