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OCP Instructors Guide for Oracle DBA Certification

Chapter 2 - Oracle Database Architectures

Venturing into the Great Unknown – New Database Architectures

If a new database architecture is selected (one that has never been used before) an additional set of concerns must be addressed:

  • Venturing into new architectures will increase development time and training costs. Can the additional time and higher application development costs be justified?
     

  • If the desired architecture requires support from the development area, can application personnel effectively administer the new architecture?
     

  • Is the additional functionality or cost reduction the new architecture provides worth any additional risk to the application? This is often described as the comfort ratio.
     

  • What is the business unit’s, application area’s and the IT department’s vision of the future?

Conclusion

The database architecture (hardware platform and operating system) is the foundation for applications that run upon them.   The most important decisions in the application development life cycle are the ones made during the initial stages of application design.  The technologies to be used for data storage, data processing and application design and development are critical to the success of all application development projects.  Even if your IT shop has experts in database administration and application design, their expertise will not overcome a poorly chosen or incorrectly designed architecture.
 


The above text is an excerpt from:


OCP Instructors Guide for Oracle DBA Certification
A Study Guide to Advanced Oracle Certified Professional Database
Administration Techniques

ISBN 0-9744355-3-8

by Christopher T. Foot
 

http://www.rampant-books.com/book_2003_2_OCP_print.htm


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