Dictionary

Open source

“Software whose source code is available under a licence that permits use, inspection, modification and redistribution on stated terms.”

Why open source matters to a first-time founder

Open-source components can speed development, reduce initial cost and provide transparent building blocks. They also create maintenance, security and licence obligations. Founders need an inventory of dependencies and a review process, because copying publicly visible code does not automatically grant permission to use it.

Examples of open source

A start-up builds its web service with a library released under the MIT License. It keeps the required copyright and licence notice in distributed copies. Before embedding a different component under a copyleft licence, the team checks how its distribution model affects source-sharing obligations.

Common misunderstanding

Open source does not mean public domain, free of charge, secure or unsupported. Copyright still applies and the licence sets permissions and conditions. “Source available” is also not necessarily open source if the licence restricts fields of use or redistribution beyond accepted criteria.

When to use it

Use the term when evaluating software licensed under a recognised open-source licence. Record the exact component, version and licence; scan dependencies; preserve notices; and plan updates. Seek specialist advice where copyleft, patents, distribution or combining code could affect your product obligations.