---
title: "Data Quality Services | Microsoft Docs"
ms.custom: ""
ms.date: "06/13/2017"
ms.prod: "sql-server-2014"
ms.reviewer: ""
ms.technology: data-quality-services
ms.topic: conceptual
ms.assetid: 9c6b996c-e768-4bf5-837f-5436ed9cea1d
author: lrtoyou1223
ms.author: lle
manager: craigg
---
# Data Quality Services
  [!INCLUDE[ssDQSnoversionLong](../includes/ssdqsnoversionlong-md.md)] (DQS) is a knowledge-driven data quality product. DQS enables you to build a knowledge base and use it to perform a variety of critical data quality tasks, including correction, enrichment, standardization, and de-duplication of your data. DQS enables you to perform data cleansing by using cloud-based reference data services provided by reference data providers. DQS also provides you with profiling that is integrated into its data-quality tasks, enabling you to analyze the integrity of your data.

 DQS consists of [!INCLUDE[ssDQSServer](../includes/ssdqsserver-md.md)] and [!INCLUDE[ssDQSClient](../includes/ssdqsclient-md.md)], both of which are installed as part of [!INCLUDE[ssCurrent](../includes/sscurrent-md.md)]. [!INCLUDE[ssDQSServer](../includes/ssdqsserver-md.md)] is a SQL Server instance feature that consists of three SQL Server catalogs with data-quality functionality and storage. [!INCLUDE[ssDQSClient](../includes/ssdqsclient-md.md)] is a SQL Server shared feature that business users, information workers, and IT professionals can use to perform computer-assisted data quality analyses and manage their data quality interactively. You can also perform data quality processes by using the [!INCLUDE[ssDQSCleansingLong](../includes/ssdqscleansinglong-md.md)] and Master Data Services (MDS) data quality functionality, both of which are based on DQS.

 For information about installing DQS, see [Install Data Quality Services](install-windows/install-data-quality-services.md). If you want to upgrade your existing version of DQS to [!INCLUDE[ssCurrent](../includes/sscurrent-md.md)], see [Upgrade Data Quality Services](../database-engine/install-windows/upgrade-data-quality-services.md).

 **Browse Content by Area**
 ![Small File Folder Icon](../../2014/integration-services/media/filefolder-small.gif "Small File Folder Icon") [Data Quality Client Application](../../2014/data-quality-services/data-quality-client-application.md)

 ![Small File Folder Icon](../../2014/integration-services/media/filefolder-small.gif "Small File Folder Icon") [DQS Knowledge Bases and Domains](../../2014/data-quality-services/dqs-knowledge-bases-and-domains.md)

 ![Small File Folder Icon](../../2014/integration-services/media/filefolder-small.gif "Small File Folder Icon") [Data Quality Projects](../../2014/data-quality-services/data-quality-projects-dqs.md)

 ![Small File Folder Icon](../../2014/integration-services/media/filefolder-small.gif "Small File Folder Icon") [Data Cleansing](../../2014/data-quality-services/data-cleansing.md)

 ![Small File Folder Icon](../../2014/integration-services/media/filefolder-small.gif "Small File Folder Icon") [Data Matching](../../2014/data-quality-services/data-matching.md)

 ![Small File Folder Icon](../../2014/integration-services/media/filefolder-small.gif "Small File Folder Icon") [Reference Data Services in DQS](../../2014/data-quality-services/reference-data-services-in-dqs.md)

 ![Small File Folder Icon](../../2014/integration-services/media/filefolder-small.gif "Small File Folder Icon") [Data Profiling and Notifications in DQS](../../2014/data-quality-services/data-profiling-and-notifications-in-dqs.md)

 ![Small File Folder Icon](../../2014/integration-services/media/filefolder-small.gif "Small File Folder Icon") [DQS Administration](../../2014/data-quality-services/dqs-administration.md)

 ![Small File Folder Icon](../../2014/integration-services/media/filefolder-small.gif "Small File Folder Icon") [DQS Security](../../2014/data-quality-services/dqs-security.md)

## See Also
 [Introduction to Data Quality Services](../../2014/data-quality-services/introduction-to-data-quality-services.md) 
 [Data Quality Services Concepts](../../2014/data-quality-services/data-quality-services-concepts.md) 
 [DQS Resources](https://technet.microsoft.com/sqlserver/hh780961) 
 [SQL Server Resource Center](https://go.microsoft.com/fwlink/?linkID=219676)