Pass the Appian Senior Developer ACD200 Questions and answers with CertsForce

In Scrum, the product owner is the person who represents the voice of the customer and the stakeholders. The product owner is responsible for defining and prioritizing the product backlog, which is a list of features, requirements, enhancements, and fixes that need to be delivered by the team. The product owner collaborates with the team and the scrum master to ensure that the product backlog is clear, valuable, and aligned with the product vision and goals.

The question is about designing a process model to store the result of an expression rule for every item in a list with the lowest memory footprint. The best design for this purpose is to configure a script task to use a!foreach to iterate over each item in the list, as it allows you to execute an expression rule for each element of an array without creating multiple nodes or subprocesses in the process model. A script task is a node that executes an expression without user interaction, and a!foreach is a function that applies an expression to each element of an array and returns an array of results. The other options are not optimal for this purpose, as they either create more nodes or subprocesses in the process model, which consume more memory and resources. References:

Script Task

a!foreach()

 Activity chaining is a feature that allows users to complete multiple tasks in a row without returning to their task list. However, activity chaining can also have some drawbacks, such as increased memory consumption, longer transaction times, and reduced user feedback. Therefore, some practices are strongly discouraged for activity chaining, such as having more than 50 node instances or more than 5 seconds between attended activities. These practices can cause performance issues, user frustration, or process failures. Therefore, the correct answers are B and C.

References:

Activity Chaining

Performance Best Practices

Activity chaining is a feature that allows users to complete multiple tasks in a row without returning to their task list. However, activity chaining can also have some drawbacks, such as increased memory consumption, longer transaction times, and reduced user feedback. Therefore, some actions can be taken to make the process model more efficient, such as:

Shorten long process chains by combining transactions into the smallest number of nodes. This can reduce the memory footprint and the database load of the process model.

Avoid chaining system nodes like Integrations. These nodes can have unpredictable execution times and can cause timeouts or errors if chained. It is better to use asynchronous integrations or message events to decouple the process flow from external systems.

Move transactions that can be done asynchronously outside of the chain. This can improve the responsiveness of the process model and allow parallel processing of independent tasks.

Therefore, the correct answers are B, C, and D.

References:

Activity Chaining

Performance Best Practices

The likely cause for a task on a newly-launched process in Production being slow to respond to user input is having too many SAIL components on the task. SAIL components are the UI elements that make up an interface in Appian. Having too many SAIL components on a task can negatively impact the performance and user experience of the interface, as it increases the rendering time and complexity of the interface. It can also cause browser compatibility issues or memory leaks. It is recommended to limit the number of SAIL components on a task to less than 100, and to use grids, collapsible layouts, or tabs to organize and display data efficiently. References: SAIL Components Overview, SAIL Performance Tips

The appian_log4j.properties file is used to configure the logging levels for Appian components, including authentication. You can modify this file to increase or decrease the verbosity of the log output for different categories. For example, to enable trace-level logging for SAML authentication, you can add this line to the file: log4j.logger.com.appiancorp.suite.authentication.saml=TRACE References: [Appian Logging Configuration], [SAML Troubleshooting]

 Two true statements are:

It is not possible to undo changes from an import to all types of objects. Once a package is imported to an environment, it applies changes to the existing objects or creates new objects based on the package contents. There is no built-in mechanism to revert these changes or delete these objects automatically. Therefore, it is important to test the package in a non-production environment before importing it to production, and to backup any objects that may be overwritten by the import.

It is possible to import the same package multiple times. A package can be imported to an environment more than once, as long as it does not contain any conflicts or errors that would prevent the import. However, importing the same package multiple times may not have any effect if there are no changes in the package contents or in the target environment since the last import. References: Prepare Deployment Packages, Application Deployment Guidelines

The question is about the recommendations for Appian environment to address the performance risk of a large increase in users. The following are two recommendations for this purpose:

Add more process execution engines. This means adding more servers or nodes that can execute process instances in parallel, which can improve the scalability and availability of Appian. This can help handle the increased workload and demand from more users without affecting the response time or reliability of Appian.

Add more application server memory. This means increasing the amount of memory allocated to each server or node that runs Appian components, such as web servers, engines, or analytics servers. This can help improve the performance and stability of Appian by reducing memory pressure and garbage collection.

The following are not recommendations for Appian environment to address the performance risk of a large increase in users:

Add more design engines. This means adding more servers or nodes that can execute expression rules or interface components in parallel, which can improve the performance and scalability of Appian. However, this is not directly related to the number of users, but rather to the complexity and frequency of expression rules or interface components in the application.

Switch from a records-centric to a process-centric design. This means changing the application design to focus more on process models and tasks, rather than records and reports. This does not affect the Appian environment, but rather the application logic and functionality. This may or may not improve the performance of the application, depending on the requirements and use cases.

References:

Process Execution Engines

Memory Recommendations

Design Engines

Records-Centric vs Process-Centric Design

The requirement is to create a service account for a consumer to access the Appian Web API. A basic user is the user type that should be created for this purpose, as it has the minimum permissions needed to invoke web APIs and does not consume a license. A basic user can also be assigned to specific groups or roles to control the access to web APIs. The other options are not suitable for this purpose, as they either have more permissions than needed or consume a license. References:

User Types

Web API Security