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Passionately curious about Data, Databases and Systems Complexity. Data is ubiquitous, the database universe is dichotomous (structured and unstructured), expanding and complex. Find my Database Research at SQLToolkit.co.uk . Microsoft Data Platform MVP

"The important thing is not to stop questioning. Curiosity has its own reason for existing" Einstein



Showing posts with label Data Catalog. Show all posts
Showing posts with label Data Catalog. Show all posts

Monday, 1 November 2021

Data Erudition
















I have been thinking about data governance, Azure Purview and data research. How these areas link together and enable innovation, that democratisation of data and holistically thinking about data as a strategic asset. A combination of above in my diagram covers my thoughts.

Saturday, 10 July 2021

Purview Readiness one-pager checklist

Starting with Azure Purview requires a few prerequisites. The checklist  sets out 4 phases. 

Identify where to start to establish a Governance baseline foundation for your organization for general cloud governance. 












Azure Purview Readiness Checklist

Purview-Deployment-Checklist will help prepare for data governance and data democratization in your environment.

There are four sections

  • Readiness
  • Build foundation
  • Register data sources
  • Curate and consume data

The Azure Purview deployment prerequisites can help with those proof of concept deployments


Azure Purview automated readiness checklist

A set of scripts have been written to help evaluate your exciting environment for missing configuration that might prevent data sources being scanned. The PowerShell scripts are

  • Azure-Purview-automated-readiness-checklist.ps1
  • Azure-Purview-automated-readiness-checklist-csv-Input.ps1





















Tuesday, 6 July 2021

Azure Purview - A Data Catalog

Data Catalogs are becoming an essential component in the new data world. They are an inventory of an organisations data assets. The meta data collected helps in finding the most appropriate data at speed, know what data is held, the security levels and lineage of data. Microsoft have tool in preview that helps with data governance  called Azure Purview.

Azure Purview is a unified data governance service that helps you manage and govern your on-premises, multicloud and software-as-a-service (SaaS) data. Easily create a holistic, up-to-date map of your data landscape with automated data discovery, sensitive data classification and end-to-end data lineage. Empower data consumers to find valuable, trustworthy data.




Once installed it moves into the hands of data governors. There are predefined data plane roles dictating who can access what.

Purview Data Reader - access to the Purview portal and can read all content except for scan bindings

Purview Data Curator - access to the Purview portal and can read all content except for scan bindings, can edit information about assets, classification definitions and glossary terms, and can apply classifications and glossary terms to assets.

Purview Data Source Administrator - Can manage all aspects of scanning data into Azure Purview but does not have read or write access to content beyond those related to scanning. The role does not have access to the Purview Portal (the user needs to also be in the Data Reader or Data Curator roles)

Access to Purview is through Purview Studio. One the home page there are 2 menus. The quick access to menus in the centre of the page take you to

  • Knowledge centre
  • Register sources
  • Browse assets
  • Manage glossary

The left hand menu has 5 icons

Home-  to see a summary of sources

Sources – to add and manage sources

Glossary – to add and manage glossary term collections

Insights – the visual dashboards of the assets

Management – a place to perform administrative tasks

 












 

There 3 areas Data Map, Data Catalog and Data Insights

Data Map

The data map shows your sources in collection grouping of your choice. Many data types are added by default with more coming all the time. Azure Purview is built on top of Apache Atlas and with its API you can gain extra functionality.




Once a data source is add with the relate permissions granted on the asset regular scans can be scheduled. The is network isolation can give the ability to scan on-premises and Azure data sources behind a vnet using SHIR ensuring E2E network isolation.

Governing your scan has these step

  • Register your source
  • Apply and set up your credentials
  • Set up and run your scan
  • Discover your SQL server data

Glossary

This contains a set of terms the business uses. There might be multiple terms in the business that mean the same thing.

  • synonyms - different terms with the same definition
  • related - different name with similar definition

There are some default attributes that exist and can be enhanced by custom attributed. The default attributes are

  • Name
  • Definition
  • Data stewards
  • Data experts
  • Acronym
  • Synonyms
  • Related terms
  • Resources

Classification and labelling

Labelling of data is important to aid with communication. Consistency is important. Classifications can describe

  • A type of data that exists in a data asset or schema to help identify the content of a data asset.
  • It could describe a data preparation process
  • Can also help with compliance

Azure Purview provides a set of default classification rules which are automatically detected during scanning.  Purview uses the same classifications, also known as sensitive information types, as Microsoft 365. Azure Purview integrates with Microsoft Information Protection Sensitivity Label. There is automated scanning and labelling for files Azure Blob storage, Azure Data Lake Storage Gen 1 and Gen 2. Automatic labelling for database columns for SQL Server, Azure SQL Database, Azure SQL Database Managed Instance, Azure Synapse, Azure Cosmos DB.  The default classification rules are not editable although it is possible to define your own custom classification rules using Regex or custom expressions. Classification looks at the data e.g. select top 100 from customers for data profiling ,  customer pattern matching , expression matching and applying the classification tags afterwards.



 

 

















Data Catalog

This enables you to search your data , use workflows in the business glossary and view data linage for sources in the data ingestion pipeline. It connects with tools such as Power BI, Azure Data Factory and Azure Synapse. It enables curations and collaboration.

Data Insights

This is a key pillar in Purview to enable a single pane of glass in the catalog.

The insight reports that currently exist are

  • Asset Insights
  • Scan Insights
  • Glossary Insights
  • Classification Insights
  • Sensitivity labelling insights
  • File Extension Insights

Thursday, 3 December 2020

Shape Your Future with Azure Data and Analytics

The Shape Your Future with Azure Data and Analytics digital event on 3rd December 2002 shared how a unified, end-to-end platform for data and analytics builds business agility and resilience. There is an imperative for digital transformation to take place. The speed of that transformation will define an organisations future. It is that tech intensity that Satya Nadella keeps mentioning.





The ability to empower people intelligently, virtually optimise operations and transform products is the future he sees. It is this analytical power that will turn an organisation from being reactive into being proactive. This predictive power will transform organizations. Data is your most strategic asset and it should be listed as its own line as a business asset.











It was announced that Azure Synaspe became generally available.

A tool that I wasn't aware of was Azure Synapse link. Azure Synapse Link enables no complex Extract Transform and Load of data to get to the analytics.

Digital transformation is never done. It is lots of little races to improve things. Once the data foundation is built there is freedom which enables flexibility to reimage the process then automate it. Data is going to define the century in the environment and health care resilience. The ability to test hypothesis's in parallel and experiment every day transforms the efficiency and effectiveness of the world.

The many speakers talked about the core capabilities of Analytics and AI and Data Governance. Microsoft announced Azure Purview, a unified data governance platform. It will change the way businesses grow and enable predictive power. Data governance is key to gaining control over the data. Reimagine data governance as the heart of every successful data project.  Data governance reimagined with a business glossary, a trusted data dictionary and no more building manual ontologies with automated classification. As well as a linage function you can look downstream to see where all the data is being used. It see this as being amazingly helpful in supporting business. It is a data map across your data estate that will register, scan and auto classify data. A business glossary helps drive meaning. Azure Purview changes the game in governance and was a missing piece. 












Tuesday, 1 December 2020

Christmas 2020 Data pictures: Data Catalogue

 A picture tells a 1000 words. Just a bit of fun collating some key points about Data Catalogues.







Thursday, 23 July 2020

Azure Data Catalog

 What is a data catalog? Gartner define this as

“A data catalog maintains an inventory of data assets through the discovery, description, and organization of datasets. The catalog provides context to enable data analysts, data scientists, data stewards, and other data consumers to find and understand a relevant dataset for the purpose of extracting business value.”

Data Catalogs are the New Black in Data Management and Analytics (Gartner, 2018)

A data catalog is important to have to record those critical assets that bring value to data. It becomes a library full of core information about your data sources. It can contain a data dictionary and can provide basic statistics about the data. This is a really useful feature being able to explore the data.

Azure Data Catalog documentation is here and the service here

  • Users can discover the data sources they need and understand the data sources they find. At the same time, Data Catalog help organizations get more value from their existing investments.
  • They are inventories of data in the organization
  • Data catalogs are a standard for metadata management in the age of big data and advanced analytics
  • Adding tags to data sets enable a business glossary of terms to be applied to the data