Which funtion can be used to insert an empty entry? Choose the correct answer.

Arrange the parameter definition process steps in the correct sequence. (1) Define parameters in the operation mapping and bind them to the message mapping parameters. (2) Define parameters in the message mapping. (3) Set the mapping parameters in the interface determination.
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Arrange the process for defining a global user-defined function in the correct sequence. (1) Define user- defined functions in the function library. (2) Create a function library. (3) Use (global) user-defined functions from the function library in the message mapping. (4) Include the function library in the message mapping.
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In which of the following applications can business rules be created?
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What are the possible sequences of the layers within the application architecture for BPMN process models? Note: There are 2 correct answers to this question.