Hi I am looking for the actual meaning of some technical/procedure words in astronomy, like: 1) Follow-up 2) Pipeline As far I know, the follow up is the observation of an object or a field for a given amount of time, isn't it? Then, if it is, what's the difference with "standard" surveys? On the other hand, the pipeline is "just" a term to indicate the data reduction, like what? Any suggestion is really appreciated. Thank you in advance.