Information Technology (IT) service management or IT service support management (ITSM or ITSSM) refers to the implementation and management of quality IT services that meet the needs of the business. IT is a part and parcel of existence today, with almost all essential services required for day to day living depending on IT applications in one form or another.
Triple Constraints of Project Management
Project success greatly depends on whether or not constraints set for project are satisfied. The triple constraints of project management are Scope, Time and Cost. A project with time constraints can be called successful if project is delivered within specified time. Similarly projects with scope or cost constraint will be called successful projects if scope or cost constraints are satisfied respectively.
Slowly Changing Dimensions and Date Chaining
Attributes that experience changes once in a while are called slowly changing dimensions. Date type attributes that need to be updated while saving previous records, are managed using the concept of date chaining.
What is XML Technology
XML stands for Extensible Markup Language. The name extensible comes from the fact that users can create unlimited number of tags and reuse those tags; where as the name mark-up is because of XML"ýýs simple approach to structure data that is by using descriptive labels. It was derived from SGML (Standard Generalized Mark-up language) mainly for more manageable data storage and transportation.