Open architecture

Open architecture is a type of computer architecture or software architecture that allows adding, upgrading and swapping components. For example, the IBM PC and Apple IIe have an open architecture, whereas the Apple IIc and Amiga 500 computers have a closed architecture. In a closed architecture, the hardware manufacturer chooses the components, and they are not generally upgradable by the end user.

Open architecture is also beginning to be pushed to extend into the context of Architectural Design of Buildings by the group Architecture for Humanity. The group has developed a project called the Open Architecture Network which aims to bring the discipline of Architecture away from the closed format which is promoted by firms that choose not to share their work.

Open architecture allows potential users to see inside all or parts of the architecture without any proprietary constraints. Typically, an open architecture publishes all or parts of its architecture that the developer or integrator wants to share. The open business processes involved with an open architecture may require some license agreements between entities sharing the architecture information.

See also

• Open network architecture for equal-access requirements in telecommunications
• Open system (computing) for interoperability, portability and standards
• Open implementation for software with tailorable architecture
• Open source software for software that can be modified and rebuilt
• Proprietary hardware
• Vendor lock-in

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