Chapter 2 - 1-22 - CGS 2545 Database Concepts Spring 2010...

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CGS 2545: Database Concepts (Chapter 2) Page 1 © Mark Llewellyn CGS 2545: Database Concepts Spring 2010 Chapter 2 – The Database Development Process School of Electrical Engineering and Computer Science University of Central Florida Instructor : Dr. Mark Llewellyn [email protected] HEC 236, 407-823-2790 http://www.cs.ucf.edu/courses/cgs2545/spr2010
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CGS 2545: Database Concepts (Chapter 2) Page 2 © Mark Llewellyn Enterprise Data Model First step in database development Specifies scope and general content Overall picture of organizational data at high level of abstraction Entity-relationship diagram Descriptions of entity types Relationships between entities Business rules
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CGS 2545: Database Concepts (Chapter 2) Page 3 © Mark Llewellyn Segment from enterprise data model (Pine Valley Furniture Company) [simplified E-R diagram] Enterprise data model d escribes the high-level entities in an organization and the relationship between these entities
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CGS 2545: Database Concepts (Chapter 2) Page 4 © Mark Llewellyn Information Systems Architecture (ISA) Conceptual blueprint for organization’s desired information systems structure Consists of: Data (e.g. Enterprise Data Model – simplified ER Diagram) Processes – data flow diagrams, process decomposition, etc. Data Network – topology diagram People – people management using project management tools (Gantt charts, etc.) Events and points in time (when processes are performed) Reasons for events and rules (e.g. decision tables)
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CGS 2545: Database Concepts (Chapter 2) Page 5 © Mark Llewellyn Information Engineering A data-oriented methodology to create and maintain information systems Top-down planning : a generic IS planning methodology for obtaining a broad understanding of the IS needed by the entire organization Four steps to Top-Down planning: Planning Analysis Design Implementation
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CGS 2545: Database Concepts (Chapter 2) Page 6 © Mark Llewellyn Information Systems Planning Purpose: align information technology with organization’s business strategies Three steps: 1. Identify strategic planning factors a. Goals b. Critical success factors c. Problem areas 2. Identify corporate planning objects a. Organizational units b. Locations c. Business functions d. Entity types 3. Develop enterprise model a. Functional decomposition b. Entity-relationship diagram c. Planning matrices
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CGS 2545: Database Concepts (Chapter 2) Page 7 © Mark Llewellyn Identify Strategic Planning Factors
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This note was uploaded on 10/05/2010 for the course CGS 2545C CGS 2545c taught by Professor L during the Spring '10 term at University of Central Florida.

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Chapter 2 - 1-22 - CGS 2545 Database Concepts Spring 2010...

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