Solution Manual Modern Database Management Byhoffer
Full file at Solution Manual for Modern Database Management 12th Edition by HofferComplete downloadable file at:by-HofferThe purpose of this chapter is to introduce students to the database approach to informationsystems development, the important concepts and principles of the database approach, and thedatabase development process within the broader context of information systems development.This is an important chapter because it conveys a sense of the central importance of databases intoday’s information systems environment and in all modern enterprises. The idea of anorganizational database is intuitively appealing to most students. Laptop screen for mac. However, many students willhave little or no background or experience with the technical implementation of databases.Others will have had some experience with database management systems intended for personalor workgroup use (such as Microsoft Access). Consequently, they will have a limited perspectiveconcerning an organizational approach to databases.In this chapter we introduce the basic concepts and definitions of databases. We contrast datawith information, and introduce the notion of metadata and its importance.
We contrast thedatabase approach with older file processing systems, and introduce the Pine Valley FurnitureCompany case to illustrate these concepts. We describe the range of database applications fromdatabases with a personal or workgroup scope to enterprise databases and identify key decisionsthat must be made for each type of database.
We describe both the potential benefits and typicalcosts of using the database approach. We also trace the historical evolution of database systems,in order to provide a context for understanding the database approach for data storage andretrieval.The chapter also presents an expanded description of the systems development life cycle(including an introduction to rapid application development methods of prototyping and agilesoftware development) and the role of database development within it. The chapter provides anupdated description of the well-known three-schema architecture and uses it to summarize thevarious deliverables of database development.
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The chapter concludes with an example ofdatabase development situated in the context the Pine Valley Furniture Company case.Chapter ObjectivesSpecific student learning objectives are included at the beginning of each chapter.