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It builds from prior conceptual modeling by showing how to transform data models into relational database schemas. 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Sharing and managing the vast amounts of data needed by a modern organization would not be possible without a database management system.  \nIn Chapter 4, students learned to construct conceptual data models and to develop entity-relationship diagrams (ERDs) for traditional analysis and domain model class diagrams for object-oriented (OO) analysis. To implement an information system, developers must transform a conceptual data model into a more detailed database model and implement that model in a database management system.  \nIn the first sections of this chapter students learn about relational database management systems, and how to convert a data model into a relational database schema. The database sections conclude with a discussion of database architectural issues such as single server databases versus distributed databases which are deployed across multiple servers and multiple sites.  \nMany system interfaces are electronic transmissions or paper outputs to external agents. Therefore, system developers need to design and implement integrity controls and security controls to protect the system and its data. This chapter discusses techniques to provide the integrity controls to reduce errors, fraud, and misuse of system components. The last section of the chapter discusses security controls and explains the basic concepts of data protection, digital certificates, and secure transactions.  \nLearning Objectives  \nAfter reading this chapter, the student should be able to:  \n􀁹 Explain the responsibilities of the data administrator and database administrator  \n􀁹 Design a relational database schema based on a class diagram  \n©2016 . Cengage Learning. All rights reserved.  \n􀁹 Evaluate and improve the quality of a database schema  \n􀁹 Describe the different methods for configuring distributed databases  \n􀁹 Explain the importance of and methods for protecting the database  \nNotes on Opening Case and EOC Cases  \nOpening Case  \nDownslope Ski Company: Designing a Secure Supplier System Interface: This case discusses avery real situation that is faced by many companies in today's interconnected world. Downslope Ski Company is a manufacturer of skis and snowboards. To streamline its production process and to reduce raw material costs, it uses a just-in-time production approach. The case highlights the difficulty of responding to many different and varied stakeholders. Each stakeholder has different information needs and the solution must be integrated to meet all these needs. In addition, the data inputs and outputs will range from Web-based systems to automated equipment feeds. These diverse requirements must be integrated into the solution.  \nEOC Cases  \nComputer Publishing, Inc.: Writing and publishing a textbook is a complex process. Updating and maintaining a textbook is also complex. Computer Publishing, Inc. is looking for a way to automate the writing, editing, updating, and publishing process. In order to do so, a sophisticated data model of a textbook and all of its association is required. Students are asked to develop this data model and discuss the appropriateness of the relational data model for storing all of this information (including images, test banks, etc.) Students are also asked to discuss the issues relating to maintaining the security of this information since outside contractors will need access to it.  \nCommunity Board of Realtors (running case): Community Board of Realtors is a professional organization that supports real estate offices and agents. ","cbCaikklanYpd7rz","https://ap.wps.com/l/cbCaikklanYpd7rz","pdf",224557,16,"English","# Chapter Overview\n## Learning Objectives\n## Notes on Opening Case and EOC Cases\n### Opening Case\n### EOC Cases\n## Instructor's Notes","[{\"question\":\"What is the main purpose of a database management system in this chapter?\",\"answer\":\"It explains how database management systems support designers, programmers, and end users by providing capabilities to store, retrieve, and manage data for organizations.\"},{\"question\":\"How do students move from a conceptual model to an implemented database in Chapter 9?\",\"answer\":\"Students learn to convert a conceptual data model into a relational database schema and then implement the schema in a database management system.\"},{\"question\":\"What database integrity and security topics are emphasized?\",\"answer\":\"The chapter discusses techniques for integrity controls to reduce errors, fraud, and misuse, and it covers security controls such as data protection, digital certificates, and secure transactions.\"}]","Chapter 9 - Designing the Database | PDF",1792965985]