closed source

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Related to Closed source software: Open Source Software, Proprietary software

closed source

Proprietary software owned by one organization. The term is typically used only in discussions that contrast open source software with proprietary software. See open source and proprietary software.
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References in periodicals archive ?
Most of commercial or proprietary software projects are based on closed source software development model (CSSD) (Vidyasagar Potdar & Elizabeth Chang 2004).
Risk assessment should be undertaken before any supply contract is entered into, whether the supply is for open or closed source software. If these indemnities and warranties are required, it will obviously be important to assess whether the proposed supplier has the means to fulfil its potential obligations.
The benefits of OSS over closed source software include lower costs, better quality, higher reliability, increased choice and improved security.