Extended Systems OneBridge 4.1 Guia do Utilizador descarregar pdf (Página 43)

CHAPTER 4 Projects and Jobs

User’s Guide 29

Simulating and executing a project

Simulating a project is a highly interactive process that lets you monitor and

validate your transformation process step by step. In contrast to executing a

project, you can view the data during a simulation at any stage of the

transformation process. During the final steps of a simulation, data is written

into the data sinks. Many transformation components (such as the Data

Calculator) allow you to change transformation rules and sample values on-

the-fly to validate your rule base for all potential content.

Note A project can only be simulated after all components have been properly

initialized.

The basic functions of a simulation consist of the following high-level steps:

• Start a simulation

• Step through a component

• View the data flow on the connecting Link or within the component

• Modify and re-initialize the component to continue to simulate the data

flow

In simulation, at a more detailed level, you can:

• View data content on connecting links

• View input data and output data inside a component

• Modify properties or calculations on-the-fly, so that you can change

transformation rules and sample values to validate your rule base

• Re-step a component after modifying a calculation or property

• Perform “what-if” scenarios

• Take multiple steps through the project

❖ To simulate a project

1 Click Start to start a simulation. When you click Start:

• All components of the project become initialized.

• All connections within the project are validated.

• All pre-SQL statements in the projects are executed.

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Extended Systems OneBridge 4.1 Guia do Utilizador Página 43