The only one of these that is not a benefit of the public frameworks system is that they are free so that they can be implemented quickly. Often, a public framework can cost a big sum. For smaller companies, this isn’t good. It may not be feasible for a small company to use an official public framework, but they can glean knowledge of what they do and what they are due to the fact that public frameworks are often widely known about and information is often available free of charge.
However, the other three answers are all advantages to using the public frameworks system. Companies can collaborate and use the framework system for streamlining purposes, for example, because everyone will understand what the framework means.
Public framework and standards are not always free. They can cost you a sum of money to apply and do not always implement quickly. However, public knowledge of the products is widely available and can be accessed easily. They are also more robust.
The reason is that they are validated across a wide range of environments. Moreover, another advantage of using them is that they help in collaborations. If your company is thinking of collaborating with another name in the industry, they are sure to make things easier, thanks to its common knowledge. You can avail all these benefits using the public framework system.