An OpenSTA Test is comprised of one or more Task Groups. Task Groups can be of two types, Script-based or Collector-based. Script-based Task Groups represent one or a sequence of HTTP/S Scripts. Collector-based Task Groups represent a single data collection Collector. Task Groups can contain either Scripts, or a Collector, but not both. The Scripts and Collectors included in Task Groups are known as Tasks. A Test can include as many Task Groups as necessary.