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When it comes to integration it's important to understand the difference, between asynchronous methodologies. These two types of integration serve purposes depending on whether you need a system response or if you can wait for the results. Each type has its advantages and disadvantages.
Synchronous integration, also known as Request Reply requires completing an external system interaction before moving with an operation. This type of integration is crucial when real time information display is necessary. For example if one system needs to show a list of courses based on a users profile and that list is stored in another system the first system must request the information from the latter, which will then respond.
Direct requests involve communication between two systems, without any intermediaries.
Pros:
Fast data exchange.
Relatively easy to establish.
Fewer points of failure since two systems are involved in the interaction.
Cons:
Tracing errors can be challenging without interfaces or monitoring tools.
Managing credentials can be complex.In the context of integration there is often a middleware system that acts as an intermediary, between the requester and the receiver. This intermediary can be a third party solution or an in house one.
Advantages:
1. The intermediary has the capability to modify or enhance requests and responses.
2. It can also function as a caching mechanism.
3. Provides monitoring of system health.
4. Offers logging, error management and credential management.
5. Acts as an abstraction layer collecting data from sources.
Disadvantages:
1.Introducing another component adds a point of failure.
2.There may be a performance overhead due to processing time.
Asynchronous integration allows for data transfer to occur at a time which means that the requesting system does not have to wait for a response before proceeding with its operations. This approach is particularly useful when dealing with amounts of data or when immediate responses are not required, such as in data synchronization between CRM and ERP systems.
Advantages:
1. Asynchronous integrations tend to be more reliable than ones.
2. They offer service availability.
3. Efficient utilization of machine resources is possible.
4. Data offloading can occur during periods.
5. Enables batching of data for processing.
Disadvantages:
1.The system may overlook events during integration.
2.Immediate feedback is not feasible in this approach.
3.Delays in response might give users the impression that theres an issue, with the systems functioning.
In conclusion determining whether to use request reply) or integration depends on the specific integration situation. Each approach has its set of benefits, challenges and ideal applications. It is crucial to consider these factors and make a decision that aligns with the integration needs.
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