Total Cost of Ownership
The total cost of acquiring, installing, using, maintaining, changing, and getting rid of something across and extended period of time (most or all of its useful life).
Transaction
A process whereby the exchange of information between a local and remote program achieves a result. The result is achieved only when all operations within the transaction are executed successfully.
Transaction Processing System
Business applications that focus on processing operational data and whose main functions are 1) operational level data storage and processing 2) efficiency, accuracy and speed.
Transmission Control Protocol/Internet Protocol
A popular communication protocol that provides interoperability features and allows computers to communicate with each other. Widely used for Internet connection.
Trigger
An action or system status that initiates a set of tasks, usually used in relation to a business event.
Unit Testing
The independent testing of a program or configuration to make sure that it is executing without error.
Upgrade
To replace existing software with a newer version.
Upload
To send or transmit files or data from one computer to another. The opposite would be to download which would be to receive files or data
Usability
The measure of a software application's potential to accomplish the goals of the user. Some factors used in determining product usability are ease-of-use and visual consistency.
Use Case
A UML diagram that models the interaction of external entities (called actors and represented by stick figures) with internal system functions and describes how the entities use the system.