Solution stack

In computing, a solution stack, also called software stack, technology stack or simply tech stack, is a set of software subsystems or components needed to create a complete platform such that no additional software is needed to support applications. Applications are said to “run on” or “run on top of” the resulting platform.

For example, to develop a web application, the architect defines the stack as the target operating system, web server, database, and programming language. Another version of a software stack is operating system, middleware, database, and applications. Regularly, the components of a software stack are developed by different developers independently of one another.

Some components/subsystems of an overall system are chosen together often enough that the particular set is referred to by a name representing the whole, rather than by naming the parts. Typically, the name is an acronym representing the individual components.

The term “solution stack” has, historically, occasionally included hardware components as part of a final product, mixing both the hardware and software in layers of support.

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