# Namespace

> A dashboard item that shows plant data as one tree, site, area, cell and asset, with every signal's latest value, unit and age, and a search box.

Source: https://proxus.io/docs/analyze/dashboard-items/namespace

The **Namespace**  item shows the plant's data as one tree: site, area,
cell and asset, with the signals of each asset under it. Open a branch to go down a level; an open asset shows its
path in the tree and every signal with its latest value, unit and how long ago it arrived.

- **Search.** Type part of an asset, signal, equipment model or unit to narrow the tree to what matches; every branch
  with a match opens.
- **Summary.** How many assets and signals are shown and the share that arrived recently.
- **Dot.** Green when every signal under the branch arrived recently, amber when some did and grey when none did.

The first site opens down to its first asset, also after a filter from another item changes what is shown.

## Data fields

**Asset** and **Signal** are required: one row per asset and signal. **Site**, **Area** and **Cell** build the levels
above the assets; leave one out and the tree skips it. **Latest value** with **Unit**, or **Text value**, is what each
signal shows. Bind **Seconds since last value** with the **Min** summary.

## Settings

- **Recent within (s)** is how old a signal's last value may be to count as recent.

## Where to see it

The Meridian demo plant uses it on **Meridian · Data Model Command Center**, filtered by the
[Signal Model](https://proxus.io/docs/analyze/dashboard-items/signal-model) item.

## Related

- [Signal Model](https://proxus.io/docs/analyze/dashboard-items/signal-model)
- [Data Flow](https://proxus.io/docs/analyze/dashboard-items/data-flow)
- [Proxus dashboard items](https://proxus.io/docs/analyze/dashboard-items)