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# Staab Itp 251 Chapter 8 Swl Case Presentation

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### Staab Itp 251 Chapter 8 Swl Case Presentation

1. 1. To the Point<br />CH. 8<br />System Development and Analysis<br />John Staab, CEO<br />
3. 3. Concept of Normalization<br />Normalization is basically any process of conforming an object to rules and regulations. This can include the removal or errors in repeated data to create a common scale for measurement.<br />
4. 4. Normalization Model<br />
5. 5. Carla’s Design<br />Carla’s design contains a repeating group and is therefore “unnormalized”. All of the fields are contained in a single table with a repeating group of six fields.<br />
6. 6. ERD<br />
7. 7. Third Normal Form<br />PROJECT (PROJECT-NUMBER, PROJECT-NAME, START-DATE, PROJECT-STATUS)<br />EMPLOYEE (EMPLOYEE-NUMBER, EMPLOYEE-NAME, DEPARTMENT-NUMBER, JOB-TITLE)<br />PROJECT HOURS (PROJECT-NUMBER, EMPLOYEE-NUMBER, PROJECT-HOURS) <br />DEPARTMENT (DEPARTMENT-NUMBER, DEPARTMENT-NAME)<br />
8. 8. 10 Tasks<br />Identify all entities<br />Create initial ERD<br />Identify Tables<br />Design Tables<br />Identify Normal Form<br />Sample Data<br />Normalization<br />Final ERD<br />Documentation<br />Lessons Learned<br />
9. 9. Concurrent Tasks<br />Identify all entities<br />Identify Tables<br />Identify Normal Forms to be used<br />Create Sample Data<br />Normalization<br />Documentation<br />Lessons Learned<br />
10. 10. Sequential Tasks<br />Create initial ERD (dependant on entity identification)<br />Design Tables (dependant of table identification)<br />Final ERD (requires initial ERD and normalization)<br />