---
id: DYN-2
family: GR-DYN
level: extended
profiles: [storage-api, editor-client]
posture: normative-target
added: "1.0"
changed: "1.0"
source: https://flowdrop.io/spec/rules/gr-dyn/dyn-2
specification: FlowDrop Workflow Specification 1.0-draft
licence: CC BY 4.0
---

# DYN-2 — A dynamic port declares a name, a label and a data type

*GR-DYN (Part I) · level: extended · profiles: storage-api, editor-client · added in 1.0*

## The rule

> **Normative.** This is the rule.
>
> 1. Every dynamic port definition carries a `name`, a `label` and a `dataType`.
>
> 2. The `dataType` defaults to `mixed`, and the set an editor offers an author is exactly those data-type lanes that carry a value; the control lanes are not offered, because a dynamic port carries a value by definition.

---

Rule identifiers are permanent and are never renumbered. This specification carries
no implementation status: each implementation publishes its own standing against
these rules. Licensed CC BY 4.0.