This process is defined technically as “ extracting data from homogeneous or heterogenous sources.” The term “ homogenous or heterogenous” signifies that there can be a similar type of data, or it can differ according to the source from which it is being extracted. The first processing that we do on the data is extraction. Before that, let’s take a brief look at the individual components of the ETL system. When the system is complete and working, it reaps out benefits that we will discuss in the later section. So, ETL systems are made in a way that is capable of fetching the data from these sources and processing it further. Today, when 5 billion people are accessing the internet, they are expected to generate data that is impossible to perform operations on manually. Such a phenomenon widens the sources that contribute to the data. This is a classic example of cross-platform app l ications. For instance, you can play a song on your mobile application and later find the same song in the recently played section of the web application. Not only this, you will get consistent information across all these applications.
#TESTING ETL PROCESSES ANDROID#
For instance, if I consider Amazon Music, you might be able to encounter an android based application, a windows-based application, and a web application that can provide you with the same experience (except for the native features). It is also a common phenomenon these days to launch different applications for different devices into the market. A high-level and highly technical diagram illustrated on Wikipedia shows pre and post-steps of ETL as follows:
These three processes are concerned with data and are written as well as performed in the same sequence. The term ETL stands for Extract, Transform, and Load. One such pipeline of the process is called ETL. When we talk about data processing (a part of it though), we are generally not talking about a single process but a combination. Which automation tool is best for ETL testing? 9 Best ETL Test Automation Testing Tools.8 Test Automation in ETL and where we stand today.6.7 Prepare a final report – Close tests.6.1 Exploring and gathering the requirements.
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