| Subject | English | Czech |
| comp., MS | open content model | otevřený model obsahu (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 otevřeného přístupu do zařízení (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) |
| astr. | open model | otevřený model |
| astr. | open model | otevřený vesmír |
| comp., MS | Open Systems Interconnection model | model OSI (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 | referenční model propojení otevřených systémů |
| commun., comp. | open systems interconnection reference model | sedmivrstvový referenční model |
| commun., comp. | open systems interconnection reference model | referenční model OSI |
| commun., comp. | open systems interconnection reference model | model OSI |