Integration Patterns

Question 1

What are the limitations of UI Update Based on Data Changes integration pattern

Answer 1

• Delivery of notifications isn’t guaranteed.
• Order of notifications isn’t guaranteed.
• Notifications aren’t generated from record changes made by Bulk API.

Question 2

Request and Reply Key considerations f?

Answer 2

• The message size - small or large
• The number of users performing the operation in peak hours.
• Can the remote system respond with low latency.
• How is the event initiated? Click of a button or automated DML operation

Question 3

Request and Reply - Key Governor limits to consider?

Answer 3

• Maximum APEX call out time is 120secs. This time is configurable.
• Since Request and Reply is a Synchornous transaction, “Apex synchronous transaction governor limits” also need to be considered. i.e. 10 transactions that run for more than five seconds each. +

Question 4

Which 4 Dimensions can be used to evaluate integration pattern and solution for the requirement?

Answer 4

Layers: The different types of tasks in a system

Volume: The amount of data synched and the transformation activity between systems

Timing: Communication timing is either asynchronous or synchronous, where data flows between systems in real time (or as soon as possible) or is batched up for later delivery

Direction: The source direction, which can be from Salesorce to another system, from another system to Salesforce, or bidirectional