API command line GUI
single shot periodic
queue priorities run now
priorities pause abort
predefined tasks predefined tasks with parameters free style
parallel sequential tag parallel
threaded green
inspect what was running, its output, and result what is running what is scheduled (incl. periodic)
tags = tags marks what the task does
conflicts = tags postpone if the task conflicts with a running task which means it does something which should not run in parallel, i.e. two tag sets have a non-empty intersection
compatible = tags run only if all tasks will have something in common
queues completed running ready scheduled
create (add) retrieve (list, detail) update (pause) delete (kill, terminate)
stdout, stderr