Most of the company or industry has data or any different role of an employee is related in one way or the other to data analysis and software development. Most employee who has experience with data dictionary in Excel their familiar with data catalog. If you don’t have a data catalog tool you’d probably try to document all your data in all your systems somewhere in a spreadsheet. Especially, if were talking about the enterprise data catalog, which has a huge data that needs catalog.
What is Data Catalog?
I know, I keep mentioning about the data catalog from above, but never explain it in details about “Data Catalog”. Well, data catalog is will empower you to manage all of your data assets. Data catalog is google cloud’s highly scalable data discovery and metadata management service. Data catalog provides you with a simply used search interface for data discovery and an API for programming access and building custom applications. It’s powered by the same google search technology that supports popular google services like drive and gmail, and it’s fully managed for effortless setup with no additional infrastructure. To manage with data catalog you create tag templates that let you tag your data assets with structured tags. Structured tags let you capture any complex business metadata like the person responsible for that data asset, data classification, retention policies, or whether the data contains sensitive personal identifiable information.
A lot of companies especially big companies we’re trying to build their own data platforms. Data platforms is a technology that wasn’t matured and there was so much data. Because there are so much data those data would swarms a data which is not well structured and not well documented. Back then, there were no good data catalog in the market, especially for the enterprise data catalog. But how would you document all the metadata in your data lakes or data warehose. Well, you would use manual input in Excel data dictionaries and as you can imagine it’s not the best approach it takes a lot of time, a lot of effort, and it’s not easy to maintain. So what other problems might happen if you have a system like I just mentioned. If you have a lot of data and you have this new data platform, but no data catalogues. Let’s say you need to start a new project and that’s a data related project. Like how would you find the right data set, all you would probably do is go and talk to people, or trying to find someone in your address book that can help. The company or just you knows to rely on luck, but lack of impact in understanding. Let’s say you have your data project and then you want to make some changes like migration projects or just change the definitions of some of the business attributes. How can you understand what’s going to break, well it’s really hard and you’ll just be in fingers crossed. Next is lets go into my migration project. How will you troubleshoot if you don’t know what’s behind your data? How do you troubleshoot any potential problems or if anything looks suspicious? How can you know that those calculations are correct? If there’s a data catalog in place you can easily do this. If not, that’s going to be time-consuming and problematic.
What is Data Catalog Tools?
Data catalog has grown rapidly in recent years. Several data catalog tools are available today with new tools emerging and catalog functions being added to existing tools regularly. Data catalog tools contain information about the source, data usage, relationships between entities as well as data lineage. Data catalog tools exist today in several forms, such as Standalone, Integrated with Data Preparation, Integrated with Data Analysis, and Fully Integrated Solution. This provides a description of the origin of the data and tracks changes in the data to its final form. Also, to avoid misunderstandings data catalog tools provide a Business Glossary, through which the nomenclature is systematized. It contains business terms along with their definition, relationship to each other, as well as its location in the hierarchy of all data assets. There are many apps for data catalog tasks on the market. Complex data cataloging software that can also solve data profiling, data lineage, and data classification problems, as well as open-source data catalog tools.
Importance function of Data Catalog Tools:
- Advance Resource Search
- Business Glossary
- Data Classification Automation
- Data Dependencies
- Data Lineage
- Data Management Automation
- Data Profiling
- Data Relationship
- Data Storage
Hopefully, I was able to help you to understand “What is Data Catalog and Data Catalog Tools”. If you have suggestion or opinion wish to share, please do hesitate to comment below. I’m very much happy to learn things that you would like to share. Thank you for visiting my blog website.
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