Chapter 7. How ESB Uses the Registry to Keep Track of Services

When you work in software engineering, you spend a lot of your time looking for new ways to solve problems. It's often the case, however, that we use similar approaches to solve different problems. One type of problem that you frequently face is locating "stuff".

When the scale of human population reached the level where it was impossible to keep track of where individuals lived, the notion of an "address" was invented. When computer networking was invented, a similar problem was solved through IP (Internet Protocol) addresses. But, since human beings have a hard time remembering numeric addresses, DNS was invented to give us a way to "map" these numeric addresses to a hierarchical system of mnemonic names.