Podcast
Questions and Answers
What is a key consideration when deciding between event-driven and message-driven approaches?
What is a key consideration when deciding between event-driven and message-driven approaches?
- Understanding the differences in service communication (correct)
- Minimizing points of failure
- Focusing on the network size
- Prioritizing software system complexity
In a message-driven approach, what is an example scenario involving back-and-forth communications?
In a message-driven approach, what is an example scenario involving back-and-forth communications?
- A gaming console connecting to an online multiplayer game
- An airline customer buying a ticket through a web browser (correct)
- A user browsing an e-commerce website
- A social media platform sending push notifications
What is a characteristic of modern software systems that influences the choice between message-driven and event-driven approaches?
What is a characteristic of modern software systems that influences the choice between message-driven and event-driven approaches?
- Distributed nature and network connectivity (correct)
- Operating system compatibility
- User interface design
- Backend database structure
Why is it important to understand both message-driven and event-driven approaches in today's world of distributed computing?
Why is it important to understand both message-driven and event-driven approaches in today's world of distributed computing?
What is the well-known location used by components to publish events in Event Driven systems?
What is the well-known location used by components to publish events in Event Driven systems?
In Event Driven systems, how do components share data with consumers?
In Event Driven systems, how do components share data with consumers?
What type of message is sent to produce a change on the state in a CQRS/ES application?
What type of message is sent to produce a change on the state in a CQRS/ES application?
What does an Event message include in a CQRS/ES application?
What does an Event message include in a CQRS/ES application?
How do components announce the location where they expose their events in Event Driven systems?
How do components announce the location where they expose their events in Event Driven systems?
What is the main difference between 'Message Driven' and 'Event Driven' systems?
What is the main difference between 'Message Driven' and 'Event Driven' systems?
What type of message is sent to a component to obtain some information from it in a CQRS/ES application?
What type of message is sent to a component to obtain some information from it in a CQRS/ES application?
What is the response to a Query message in a CQRS/ES application?
What is the response to a Query message in a CQRS/ES application?
What did Alan Kay emphasize as a crucial part of his definition of object-oriented programming?
What did Alan Kay emphasize as a crucial part of his definition of object-oriented programming?
What should a message in an API call include?
What should a message in an API call include?
What are complex interactions between services and application components referred to as?
What are complex interactions between services and application components referred to as?
How do event-driven systems register events?
How do event-driven systems register events?
What does an event-driven user interface lack?
What does an event-driven user interface lack?
What type of system is an event-driven architecture?
What type of system is an event-driven architecture?
In a service-oriented front-end architecture (SOFEA), where are web pages defined?
In a service-oriented front-end architecture (SOFEA), where are web pages defined?
Why are message-driven systems familiar to most programmers?
Why are message-driven systems familiar to most programmers?
What does it mean when message-driven systems 'block'?
What does it mean when message-driven systems 'block'?
What do event-driven systems allow for in managing and executing large amounts of transactions?
What do event-driven systems allow for in managing and executing large amounts of transactions?
What are observability tools emerging to aid in debugging?
What are observability tools emerging to aid in debugging?
What does the choice between message-driven and event-driven approaches depend on?
What does the choice between message-driven and event-driven approaches depend on?
What type of systems support publish/subscribe, synchronous or asynchronous communication, and transactions?
What type of systems support publish/subscribe, synchronous or asynchronous communication, and transactions?
Which infrastructure allows communication and data exchange between applications via self-contained units of information (messages)?
Which infrastructure allows communication and data exchange between applications via self-contained units of information (messages)?
Which protocol is designed for wireless sensor networks, M2M, and the internet of things, catering to constrained devices and applications?
Which protocol is designed for wireless sensor networks, M2M, and the internet of things, catering to constrained devices and applications?
What type of systems involve emitting data from a component for consumption?
What type of systems involve emitting data from a component for consumption?
Which type of systems rely on asynchronous message-passing for loose coupling, isolation, and location transparency?
Which type of systems rely on asynchronous message-passing for loose coupling, isolation, and location transparency?
What type of systems have components with unique addresses and await messages?
What type of systems have components with unique addresses and await messages?
Which system provides asynchronous communication, utilizing message queues for temporary storage and asynchronous message passing?
Which system provides asynchronous communication, utilizing message queues for temporary storage and asynchronous message passing?
Which approach involves intercepting user actions in a system's user interface?
Which approach involves intercepting user actions in a system's user interface?
What is the distinction between message-driven and event-driven environments relevant in the context of?
What is the distinction between message-driven and event-driven environments relevant in the context of?
Which system allows components to have queues for storing incoming messages in case of load spikes?
Which system allows components to have queues for storing incoming messages in case of load spikes?
What is a fundamental feature for space decoupling in systems?
What is a fundamental feature for space decoupling in systems?
Which system acts as middleware for different applications in a distributed environment, making programming easier and providing transparency for applications?
Which system acts as middleware for different applications in a distributed environment, making programming easier and providing transparency for applications?
Study Notes
Message-Driven vs Event-Driven Approaches to Application Integration
- Most large organizations will have a hybrid strategy, using both message-driven and event-driven approaches for customer-facing/API calls and enterprise operations.
- The distinction between message-driven and event-driven environments is relevant in the context of SOA, middleware, and application and enterprise integration.
- A user interface typically resembles an event-driven model, where the system intercepts user actions.
- Message-driven systems support publish/subscribe, synchronous or asynchronous communication, and transactions, while event-driven systems involve emitting data from a component for consumption.
- Message-Oriented Middleware (MOM) is an infrastructure allowing communication and data exchange between applications via self-contained units of information (messages).
- MOM provides asynchronous communication, utilizing message queues for temporary storage and asynchronous message passing.
- MOM acts as middleware for different applications in a distributed environment, making programming easier and providing transparency for applications.
- MQTT is a message-oriented protocol designed for wireless sensor networks, M2M, and the internet of things, catering to constrained devices and applications.
- Reactive Systems rely on asynchronous message-passing for loose coupling, isolation, and location transparency, enabling load management and flow control.
- In message-driven systems, components have unique addresses and await messages, while in event-driven systems, data is emitted from a component for consumption by others.
- Message passing in a message-driven system allows components to have queues for storing incoming messages in case of load spikes.
- Message passing is a fundamental feature for space decoupling in systems.
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Description
Test your knowledge of message-driven and event-driven approaches to application integration with this quiz. Explore the distinctions, uses, and benefits of both systems, including message-oriented middleware, MQTT protocol, and the role of asynchronous communication in reactive systems.
