Term | Definition |
Change management | the controlled identification and implementation of required new and/or different elements within a computer system. |
Compatibility | the capacity for two systems to work together without having to be altered to do so. |
Legacy systems | an old method that continues to be used, typically because it still functions for the user's needs, even though newer technology or more efficient methods of performing a task are now available. |
Remote host | a server that is in a different location from the company or individual that is hosting it |
Software-as-a-service(SaaS) | is a software distribution model in which applications are hosted by a vendor or service provider and made available to customers over a network, typically the Internet. |
Parallel running | the new system is introduced alongside the existing system. |
Direct-changeover | simplest method to change from an existing system to a new one. |
Phased conversion | involves splitting a new information system into a number of parts or modules that are introduced one step at a time, so that all users are introduced to the same modules in the system at the same time. |
Acceptance testing | testing conducted to determine if the requirements of a specification or contract are met. |
Debugging | Identify and remove errors from computer hardware or software. |
Beta testing | last stage of testing and normally can involve sending the product to sites outside the company for real-world exposure, often on the Internet. |
User documentation | explains how to use something to people or users of computers systems. |
User training | resources, companies and services dedicated to helping educate users on computer-related topics. |
Data loss | an error condition in information systems in which information is destroyed by failures or neglect in storage, transmission, or processing. Can be malicious or natural disaster. |
Failover | a method of protecting computer systems from freezing, rebooting or ceasing to function and in which standby equipment automatically takes over. |
Removable media | any type of storage device that can be removed from a computer while the system is running. |
Releases | The distribution of an initial or new and upgraded version of a computer software product; the distribution can be both public or private. |
Update | software file that contains fixes for problems found by other users or the software developer |
Patch | piece of software designed to update a computer program or its supporting data, to fix or improve it. |
Examples of removable media | CDs, DVDs, Blu-Ray disks, diskettes and USB drives. |
Redundancy | the inclusion of extra components that are not strictly necessary to functioning, in case of failure in other components. |
Incompatibility | characteristic of systems which cannot operate satisfactorily together on the same system. |