| Subject | English | Polish |
| comp., MS | open content model | model zawartości otwartej (A set of XML document rules that states that an element in an XML document can have additional child elements and attributes that are not declared in the schema that the document references) |
| comp., MS | Open Device Access Model | model otwartego dostępu do urządzeń (The access model for horizontal solutions, which enables a horizontal strategy. Open Device Access enables many different Windows Store apps to access a specialized device. Examples: a smartphone with multiple apps that synchronize contacts; a pedometer that allows multiple apps to read its data and post it to a website) |
| agric. | open model | model otwarty |
| comp., MS | Open Systems Interconnection model | Open Systems Interconnection (A networking model introduced by the International Organization for Standardization (ISO) to promote multi-vendor interoperability. OSI is a seven-layered conceptual model consisting of the application, presentation, session, transport, network, data-link, and physical layers) |
| commun., comp. | open systems interconnection reference model | model odniesienia OSI |