Abstract: Disclosed is a method including receiving a rule having at least one rule case for producing an output value based on one or more input values, generating a transform for receiving data from an input dataset and transforming the data based on the rule including producing a first series of values for at least one output variable in an output dataset, at least one value in the first series of values including a second series of values, and providing an output field corresponding to the at least one output variable in the output dataset for storing the second series of values.

Abstract: At least one rule specification is received for a graph-based computation having data processing components connected by linking elements representing data flows. The rule specification defines rules that are each associated with one or more rule cases that specify criteria for determining one or more output values that depend on input data. A transform is generated for at least one data processing component in the graph-based computation based on the received rule specification, including providing an interface for configuring characteristics of a log associated with the generated transform. At least one data flow is transformed using the generated transform, including: tracing execution of the data processing components in the graph-based computation at run time, generating log information based on the traced execution according to the configured log characteristics, and storing or outputting the generated log information.