Re Framework - Uipath.pdf

Robotic Enterprise Framework UiPath

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RE Framework RE-Framework is a framework recommended by UiPath to help developers build processes with best industry practice principles. This gives us the fundamental code to create more robust processes. This involves… ❏

Clean starts and exists

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Automated recoveries

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Retries

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Status management

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Logging

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Clean coding

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RE Framework - State Diagram

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Concept of RE Framework The framework is built on a State Machine which allows us to control the state the robot is working on. The state machine is setting the robot a path, given the state of the robot that is based on conditionals. There are three states ❏

Initializing State

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Processing State

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End State

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Concept of RE Framework

Initializing State The initializing state will start up applications and set up static variables that are needed for the process, but also cleaning the work environment so that the robot can perform the process on a desktop without interruptions. The major responsibilities of this state machine is ❏

Read Global config file

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Initialize all necessary applications

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Recover the environment from system error for Robot by closing and initializing the all.

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Concept of RE Framework

Processing State The processing states are inside the happy path loop. After every successful transaction the robot goes to fetch the next. When there are no transactions left, the robot will transit to the end state. The RE-Framework has two processing states. 1.

Get Transaction Data

2.

Process Transaction

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Concept of RE Framework

End State The end state, unlike the initialization state and processing state, has no transitions. It is the last state in the process. At this point the robot will go ahead and log out of the applications and try to close what it has been working on during its run. In the case of failure, it will force a shutdown of the applications by sending a “kill application” command.

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Concept of RE Framework

Error Handling REFramework gives us a high-level error handling process so that the state of the robot can change depending on what sort of error it is. It keeps track on two different errors. 1.

Business exception

2.

Application exception

We can adjust for more error types in the framework. A Business exception will be thrown when the error depends on the information given to the robot. Application exception is when an application is not functioning as it is supposed to, when there is no internet connection for example. This error will execute the retry process as opposed to the Business exception, because it might work the second time.

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Benefits ★

Low code signature: A handful of clearly written, commented reusable functions that anyone can understand and a clearly commented Main.xaml bringing structure to the process design architecture

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Separation of concerns: We keep framework implementation separate from business logic code, allowing developers and SMEs alike to focus on building processes

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Reusability: Works for any type of process, Independent of Data sources (Queue-Items, local excel files, Database data, API retrieved data), Independent of process linearity

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Benefits ★

Maintain, extend and upgrade: Easy to maintain, thanks to code lightness and SOC. Extend to achieve process behavior by editing 6 empty workflows that connect to the Main.xaml in a standard way. Upgrade or extend framework independently of business code, by editing only one file, the Main.xaml

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Exception recovery and retry: If all recovery options are exhausted, closing and restarting the application environment while remembering data is what humans do too. Top-level exception recovery is managed by the framework layer with Retry rules you can easily configure

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Audit: Keep track of the robot's work, with as much detail and privacy as you choose with the new Workblock concept; Add business information of your choosing to the published log

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