5.5

Table Of Contents
Workflow Schema
A workflow schema is a graphical representation that shows the workflow as a flow diagram of
interconnected workflow elements. The workflow schema is the most important element of a workflow as it
determines its logic.
Workflow Presentation
When users run a workflow, they provide the values for the input parameters of the workflow in the
workflow presentation. When you organize the workflow presentation, consider the type and number of
input parameters of the workflow.
Workflow Tokens
A workflow token represents a workflow that is running or has run.
A workflow is an abstract description of a process that defines a generic sequence of steps and a generic set
of required input parameters. When you run a workflow with a set of real input parameters, you receive an
instance of this abstract workflow that behaves according to the specific input parameters you give it. This
specific instance of a completed or a running workflow is called a workflow token.
Workflow Token Attributes
Workflow token attributes are the specific parameters with which a workflow token runs. The workflow
token attributes are an aggregation of the workflow's global attributes and the specific input and output
parameters with which you run the workflow token.
Phases in the Workflow Development Process
The process for developing a workflow involves a series of phases. You can follow a different sequence of
phases or skip a phase, depending on the type of workflow that you are developing. For example, you can
create a workflow without custom scripting.
Generally, you develop a workflow through the following phases.
1 Create a new workflow or create a duplicate of an existing workflow from the standard library.
2 Provide general information about the workflow.
3 Define the input parameters of the workflow.
4 Lay out and link the workflow schema to define the logical flow of the workflow.
5 Bind the input and output parameters of each schema element to workflow attributes.
6 Write the necessary scripts for scriptable task elements or custom decision elements.
7 Create the workflow presentation to define the layout of the input parameters dialog box that the users
see when they run the workflow.
8 Validate the workflow.
Access Rights for the Orchestrator Client
By default, only members of the Orchestrator administrator LDAP group can access the Orchestrator client.
The Orchestrator administrator can grant access to the Orchestrator client to other user groups by setting at
least the View permission.
Developing with VMware vCenter Orchestrator
12 VMware, Inc.