---
type: "search-params"
title: "MetadataResource Search Parameters"
resource: "MetadataResource"
---
# MetadataResource Search Parameters

<a id="effective"></a>

## effective
**Description:** The time during which the {{title}} is intended to be in use

**Type:** date

**Expression:** {{name}}.effectivePeriod

**Path:** {{name}}.effectivePeriod

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MetadataResource-effective


<a id="composed-of"></a>

## composed-of
**Description:** A resource that the {{title}} is composed of

**Type:** reference

**Expression:** {{name}}.relatedArtifact.where(type='composed-of').resource

**Path:** {{name}}.relatedArtifact.resource


<a id="depends-on"></a>

## depends-on
**Description:** A resource that the {{title}} depends on

**Type:** reference

**Expression:** {{name}}.relatedArtifact.where(type='depends-on').resource

**Path:** {{name}}.relatedArtifact.resource


<a id="derived-from"></a>

## derived-from
**Description:** A resource that the {{title}} is derived from

**Type:** reference

**Expression:** {{name}}.relatedArtifact.where(type='derived-from').resource

**Path:** {{name}}.relatedArtifact.resource


<a id="predecessor"></a>

## predecessor
**Description:** The predecessor of the {{title}}

**Type:** reference

**Expression:** {{name}}.relatedArtifact.where(type='predecessor').resource

**Path:** {{name}}.relatedArtifact.resource


<a id="successor"></a>

## successor
**Description:** The successor of the {{title}}

**Type:** reference

**Expression:** {{name}}.relatedArtifact.where(type='successor').resource

**Path:** {{name}}.relatedArtifact.resource


<a id="topic"></a>

## topic
**Description:** Topics associated with the {{title}}

**Type:** token

**Expression:** {{name}}.topic

**Path:** {{name}}.topic