A project is a unique labeling pipeline within which you define annotation specifications and create labeling jobs.
A job represents a unit of data to be labeled. As an example, For each image or video you want to label, you can create a separate job. An annotator can work on one job at a time.
A batch is a collection of jobs. We recommend using batches to group datasets you use internally, or to group jobs which are part of a weekly submission.
A workflow is an interactive visual representation of your labeling pipeline. When you create jobs, they move into a workflow and flow through the steps in the workflow till they reach the end step.
An attachment is any image, PNG, PCD or JSON file associated with a job. These can be the images you want to label, or they can be the JSON file in which you fetch results from Playment.