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Tuesday, October 2, 2012

IT infrastructure

INTRODUCTION:-
 
What Is IT Infrastructure ?
 There are probably as many definitions of IT Infrastructure as there are IT organizations. I believe the following definitions are representative and appropriate:
IT Infrastructure.. ”IT infrastructure consists of the equipment, systems, software, and services used in common across an organization, regardless of mission/program/project. IT Infrastructure also serves as the foundation upon which mission/program/project-specific systems and capabilities are built.”


image for IT infrastructure :-
 





 
 
 for more informations about IT infrastructure from wikipedia site you can click here



ITIL defines infrastructure more like: All of the components that are needed to deliver to customers. The IT Infrastructure consists of more than just hardware and software.
Additionally, for project planning purposes I believe IT Infrastructure should be subdivided into into several components:
1. Software Development
2. Software Maintenance (corrective perfective, adaptive, block changes)
3. Purchased Software (e.g. ERP system)
4. IT Infrastructure hardware (e.g. servers, switches)
5. IT Services (e.g software setup, help desk, computer administration)
Further, there are two major divisions of labor: the project and ongoing operations
Project: The project is the portion of the system life cycle where the system is developmental, that is where it is not yet in operation.
Ongoing Operations: The ongoing operations is the portion of the system life cycle where the system is deployed to users
Of course these major activities need to be further subdivided for detailed analysis and planning purposes.












 



1 comment:

  1. Very well done job Tahani, your blog is very well designed and contains good information.

    ReplyDelete