PPT-Entity Relationship Diagrams

Joe Meehean 1 Entity Relationship Model Entity type an object noun eg student attributes eg last name Relationship association between entity types bidirectional relationship between entities. Chapter 4. Requirements Specification. & Documentation. start. Chap. 2:. Elicitation. techniques. Chap. 3:. Evaluation. techniques. . alternative options. agreed. requirements. documented requirements. System. s. Analysis. Structured analysis. Karolina . Muszyńska. Based partly on: http://www.csun.edu/~dn58412/IS431/IS431_SP13.html. Model-driven Analysis. Structured analysis. Information engineering. 1. Enhanced-ER (EER) Model Concepts. Includes all modeling concepts of basic ER . Additional concepts: subclasses/. superclasses. , specialization/generalization, categories, attribute inheritance. Entity. “An . entity. is a business object that represents a group, or category of data.”. 1. Do we know a similar concept? . 1) Stephens, R.K. and Plew. R.R., 2001. . Database Design. . SAMS, Indianapolis , IN.. 2. Outline. Data Modeling: Big picture. E-R Model. Attributes. types. Relationships. connectivity, cardinality. strength, participation, degree. Entities. composite entity. supertype/subtype. Table Normalization. 12. th. Edition. Jeff Hoffer, Ramesh . Venkataraman, . Heikki Topi. . Chapter 4. : Part B. Logical Database Design and the Relational Model. Transforming EER Diagrams into Relations. Mapping Regular Entities to Relations . Chapter 2. Overview of Database Design. Conceptual design. : . (. ER Model . is used at this stage.) . What are the . entities. and . relationships. in the enterprise. ?. Students . sign up. . for . Modeling:. 1. CIS . 4365 . Entity Relationship Diagrams. Part 2. Your Individual Project. 2. CIS 4365 . Entity . Relationship Diagrams. We will develop the ERD as a class; you must execute complete the project . Spring 2011. Instructor: Hassan . Khosravi. Database Modeling and . implemnation. process. Ideas. High-Level . Design. Relational Database. Schema. Relational. DBMS. The Entity/Relationship Model . Data Management 02 Conceptual Design Matthias Boehm Graz University of Technology, Austria Computer Science and Biomedical Engineering Institute of Interactive Systems and Data Science BMVIT endowed chair for Data Management Chapter Five: Data Modeling with the Entity-Relationship Model Chapter Objectives To understand the two-phase data modeling/database design process To understand the purpose of the data modeling process Basis Data 2. ER, Relational Model. Database Design. The database design process can be divided into six steps. The ER model . is most . relevant to the first three steps. .. Requirements . Analysis. Vol.8, No.2 (2015), pp. 27 9 - 2 88 http://dx.doi.org/10.14257/ijhit.2015.8.2. 2 6 ISSN: 1738 - 9968 IJHIT Copyright ⓒ 201 5 SERSC An E xperimental C omparison of ER and UML C lass D iagrams Ahm Queries . Using . an . Extended . Graph Model. Ankur. . Agrawal. . S. Sudarshan . Ajitav. . Sahoo. . Adil. . Sandalwala. . Prashant. . Jaiswal. . IIT . Bombay. History of Keyword Queries.