Software distribution models vary greatly, each dictating the rights granted to the end-user regarding use, modification, and redistribution. These models establish the legal framework under which software can be accessed and utilized, defining the relationship between the software vendor and the customer. A common example is the difference between a commercial package sold with a perpetual license versus a subscription-based service.
The selected distribution model is crucial for protecting intellectual property, generating revenue, and controlling how software is implemented and adapted. It impacts development costs, market reach, and the level of support provided. Historically, these schemes have evolved from primarily proprietary models to include open-source options, each offering different advantages and disadvantages for both developers and users.
