Object-Oriented Programming Language Programming
Object-oriented programming (OOP) is a programming paradigm that uses "objects" – data structures consisting of data fields and methods together with their interactions – to design applications and computer programs. Programming techniques may include features such as information hiding, data abstraction, encapsulation, modularity, polymorphism, and inheritance.

OCR Optical Character Recognition
Optical character recognition, the use of scanning equipment to read printed documents, and text documents to identify the use of computers after the conversion of text encoding, such as ASCII, or BIG-5.

ODBC Open Database Connectivity
By Microsoft (MICROSOFT) developed a database (DATABASE) access to specifications, it allows all the design specifications in accordance with ODBC applications can, through the ODBC driver (DRIVER) to access the database, regardless of what the use of database management System (DBMS).

OLAP Online Analytical Processing
Direct access to the database (DATABASE) data to do data analysis applications.