How Stardust Works

This section describes some of the key concepts of Stardust (Stardust) in the context of its use for integration purposes.

Data Structure Modeling

Stardust allows you to model Structures Data Types to represent e.g.

Structured Data Types can be either

Structured Data Types can be defined manually or by importing XSD files.

Stardust also has a pluggable mechanism for adding additional properties to all fields of a data structure, e.g. to control

Process Modeling

Stardust allows you to create Process Models and execute these at runtime.

Process Models define graphically how Activities like

are executed - either sequentially or in parallel. In Stardust process models are defined using the Business Process Modeling Notation (BPMN).

The control flow via BPMN allows to model sequential execution

decisions or parallel execution

Process modeling for integration purposes mainly deals with the invocation of services, e.g.

However, human inntervention may also be used for cases where the straight-through processing via service orchestration fails, e.g. because of

Application Integration

Stardust allows the definition of Services and Application building blocks to be invoked by Activities during the execution of a Process. Stardust provides a set of standard technology connector e.g. for

An important role plays the integration with Apache Camel: arbitrary Camel routes can be invoked directly from within an Stardust Process Model and this way ensure connectivity via simple XML configurations leveraging the Connectivity capabilities of Apache Camel.

Once Application building blocks are configured, these can be reused across different Process Models. Hence, sets of these Applications can be shipped as a library specific e.g. for a certain product connectivity needs to be provided for. These libraries can then be used at clients to address integration requirements either with other SunGard products or other systems at the client.

Data and Data Mappings

In addition to describing the control flow of performing Activities sequentially or in parallel, Process Models also define the Data being used during the execution of a Process as well as the Data Flow between Activities.

Data Transformations

The conversion of one or more source data structures into one or more target data structures can be modeled as a Message Transformation Application. Message Transformation Application can be reused like services wherever a specific transformation needs to be performed.

Message Transformations allow to define simple mappings between fields of the source data structures and fields of the target data structures but also to define more complex logic like format conversions. Complex mapping logic can be defined in JavaScript, whereby additional JavaScript and Java libraries can be predefined to be available for use in these scripts.

Process Interfaces

Sometimes, it is useful to view the execution of a complex process as the execution of a single, composite service to perform a business function. Stardust allows you to expose Process Definitions as Process Interfaces with a well defined API with input and output parameters. Process Interfaces can be directly invoked as Web Services or REST Services with a corresponding parameter set.