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In this video, we are going to see use case of aid functions to better understand the capabilities

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of a step functions.

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We should understand the use cases.

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The first use case is automate, extract, transform and load.

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That means ETL processes step function ensure that long running multiple ETL jobs run in order and complete

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successfully.

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Instead of orchestrating those jobs or maintaining a separate application.

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The second use case is prepare data for machine learning.

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To enable machine learning source data must be collected, processed and normalized machine learning

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modeling systems like Amazon search maker can train on that data.

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Step functions make it easier to sequence the steps it takes to automate our machine learning pipelines.

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Another use case is orchestrate microservices that we will use during the course.

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We can use the functions to combine multiple lambda functions into responsive serverless applications

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and microservices.

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We can also orchestrate data and services that run on Amazon EC2 instance containers or on prem servers.

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Another use case is I.T and security automation.

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I.T automation can help manage increasing, complex and time consuming operations.

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For example, upgrading and patching software, deploying security updates to others vulnerabilities,

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selecting infrastructure and so on.

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These automation of repetitive and time consuming tasks can be handled by the step functions.

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So the last use case we can say that the event driven workflows, so basically we can use a list function

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for event driven workflows and event workflow which is the functions is reading some events, getting

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the events and business are transformed into series of events or financial transactions.

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We can use the functions to combine multiple functions into response and service application and microservices

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without having to write any code for workflow logic.

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And we can perform parallel processing error handling timeouts and rewrites.

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We can also orchestrate data and services that runs on the Amazon easy two instance containers and the

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functions or on premise servers.