Database design process Essay -- essays research papers

AbstractDatabase Systems has a practical, hands-on approach that makes it uniquely suited to providing a warm foundation in good database design practice. Database design is more art than science. While its true that a properly designed database should follow the normal forms and the relative model, you still have to come up with a design that reflects the business you are trying to model. This paper shows describes design process of database project.The importance of Completing the excogitate ProcessAn important point to keep in mind is that the level of structural integrity and data integrity is in direct proportion to how thoroughly the design process is followed. The less time spent on the design process, the greater the risk of encountering problems with the database. While thoroughly following the database design process whitethorn not eliminate every last(predicate) of the problems you may encounter when designing a database, it will greatly help to minimize them. Also i n an RDBMS software plan a well-designed database is easier to implement than a poorly designed database. (Michael J. Hernandez, 1996)     Key database Design ConceptsBefore a design effort can proceed full travel rapidly ahead, the reason must first take time to understand the business. Understanding the business involves understanding the entities, data, and rules within an organization, and then converting these attributes of the business into a business model. Then, the designer must have a solid comprehension of the proposed database model. Finally, the designer will convert the business model into a database model, using a design methodology, whether automatise or a manual process.(Ryan Stephens & Ronald Plew, 2002)General Design ProcessFollowing table list general steps of database designStep     verbal description1     Requirements collection and analysis2     Conceptual database design3&n bsp    Choice of a DBMS4     Data model mapping (also called discursive database design)5     Physical database design6     Database system implementation(Elmasri, Ramez, & Navathe, Shamkant B., 1994)Creating the application is the last stepnot the first Many developers take an nous for an application, bu... ... levels of normalization, but the primary levels are the first, second, and third normal forms. Each level has a rule or two that must be followed. Following all of the rules will help ensure that your database is well organized and flexible.To take an idea from inception through to fruition, you should follow a design process. This process essentially says " ring before you act." Discuss rules, requirements, and objectives, and then create the final version of your normalized tables.Reference1.     Elmasri, Ramez, & Navathe, Shamkant B., Fundamentals of Database S ystems, Second Edition, Addison-Wesley Publishing Company, 1994, ISBN 0-8053-1748-1, pages 450-452.), retrieved from website http//www.ibiblio.org/faint/finosaur/db/ , Feb 06, 20052.     Michael J. Hernandez, Database Design For unspotted Mortals, Chapter 4, 1996, retrieved from UOP resource safari Tech Books Online website, Feb 06,20053.     Ryan Stephens & Ronald Plew, Key database design concepts, 2002, retrieved from website http//searchdatabase.techtarget.com/originalContent/0,289142,sid13_gci812028,00.html, Feb 06, 2005