If you have to spend effort looking at a fragment of code and figuring out what it's doing, then you should extract it into a function and name the function after the "what".
The most powerful tool we have as developers is automation. Currently, DevOps is more like a philosophical movement, not yet a precise collection of practices, descriptive or prescriptive.
Today, Web services is really about developing for the server. What it means to developers is any set of systems services that you make a Web service you to access by any kind of device with a highly interactive client, not just a browser.