# tSchemaComplianceCheck

Ensures the data quality of any source data against a reference data source.

tSchemaComplianceCheck validates all input rows against a reference schema or check types, nullability, length of rows against reference values. The validation can be carried out in full or partly.

For more technologies supported by Talend, see [Talend components](https://help.qlik.com/talend/r/en-US/7.3/components/validation).

Depending on the Talend product you are using, this component can be used in one, some or all of the following Job frameworks:

* Standard: see [tSchemaComplianceCheck Standard properties](https://help.qlik.com/talend/en-US/components/7.3/validation/tschemacompliancecheck-standard-properties).

  The component in this framework is available in all Talend products.

* MapReduce: see [tSchemaComplianceCheck MapReduce properties (deprecated)](https://help.qlik.com/talend/en-US/components/7.3/validation/tschemacompliancecheck-mapreduce-properties-deprecated).

  The component in this framework is available in all Talend products with Big Data and Talend Data Fabric.

* Spark Batch: see [tSchemaComplianceCheck for Apache Spark Batch](https://help.qlik.com/talend/en-US/components/7.3/validation/tschemacompliancecheck-for-apache-spark-batch).

  The component in this framework is available in all Talend products with Big Data and Talend Data Fabric.

* Spark Streaming: see [tSchemaComplianceCheck for Apache Spark Streaming](https://help.qlik.com/talend/en-US/components/7.3/validation/tschemacompliancecheck-for-apache-spark-streaming).

  This component is available in Talend Real Time Big Data Platform and Talend Data Fabric.

### In this section

* [tSchemaComplianceCheck Standard properties](https://help.qlik.com/talend/en-US/components/7.3/validation/tschemacompliancecheck-standard-properties)
* [tSchemaComplianceCheck MapReduce properties (deprecated)](https://help.qlik.com/talend/en-US/components/7.3/validation/tschemacompliancecheck-mapreduce-properties-deprecated)
* [tSchemaComplianceCheck for Apache Spark Batch](https://help.qlik.com/talend/en-US/components/7.3/validation/tschemacompliancecheck-for-apache-spark-batch)
* [tSchemaComplianceCheck for Apache Spark Streaming](https://help.qlik.com/talend/en-US/components/7.3/validation/tschemacompliancecheck-for-apache-spark-streaming)

**Related concepts**

[Validating data against schema](https://help.qlik.com/talend/en-US/components/7.3/validation/tschemacompliancecheck-tlogrow-tfileinputdelimited-tfileinputdelimited-validating-data-against-schema-standard-component-enterprise-this)