Depending on the size and structure of your print service provider, some of the functions described in this section might be combined. For example, in some companies, job planning might be done by a dedicated planner, by customer service representatives, or by an estimator. And some prepress departments make no distinction between preflight (looking for job errors) and production—they just watch for problems as they prepare a job for later prepress functions. The departments are described below in the approximate order in which they handle your job. Figure 1.2 provides an overview of a fictional printing company to give you a general idea of job flow.