Component-based software production

What we mentioned above is personal ideal, and that is vision. Recently, componentized software production has been realized. First, I would like to extract a sentence that I like very much:
"The software factory must not Source codeAssembled, but the goal CodeAssembled. Just like the production of parts, you can screw a screw, instead of starting from iron or drawings, and tell you how to refine iron. This is not a software factory"
-- By Chen Rong

The component is actually in front of us. Look at com and look at the Eclipse plug-in, which is a good component. Think about the so-called new technologies such as IOC and AOP. I think a basic component framework and a component library will be available soon, or already exist. And the software has the characteristics of software, it is soft. Therefore, components should be softer than traditional industrial parts, and interface requirements should be more flexible. It takes a long time to find out what the components look like. However, I think there are several points:
1. components are black boxes
2. component interfaces should be adaptable
3. components should have been built
4. component assembly should be at runtime
5. component assembly should be standardized

Many existing technologies, including interfaces in languages, are no longer suitable for component requirements. Many things need to be customized by yourself.