MIS 325 Lecture Notes - Lecture 9: Systems Development Life Cycle, Conceptual Schema, Database
23 Dec 2016
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Document Summary
Enterprise data modeling - the first step in database development the scope and general contents of organizational databases are specified. Systems development life cycle ( sdlc ) - traditional methodology used to develop, maintain, and replace information systems. 5 phases of the sdlc - planning: enterprise modeling / conceptual data model. Design: logical database design / physical database design/ definition. Conceptual schema - a detailed, technology-independent specification of the overall structure of organizational data. Logical schema - the representation of a database for a particular data management technology. Physical schema - specifications for how data from a logical schema are stored in a computers secondary memory by a database management system focus on specific dbms that will be used. Prototyping - an iterative process of systems development in which requirements are converted to a working system that is continually revised through close work between analysts and users. Agile software development - an approach to database and software development that emphasizes:
