Model¶

• Views are composed of horizontal bands. A band may be used in any number of views, it is not owned by the view.

• Bands are horizontal lanes showing different types of content. Typically you would include at least a Time Ruler band. Item Band is a general purpose band which can render items. The items that a band should render can be filtered through the use of tags. Other band types include the ability to render parameter plots or value changes.

• Items have a start and a duration. Items can be associated with a set of tags. Any Item Band with the same tags, will show such items.

  Note

  Other systems often use the term events instead of items, however because this term already means something different in Yamcs, we use the term items instead.

• Activity Items are a special kind of item. They contain the definition of a Yamcs activity, and are picked up by the activity scheduler for automated execution.