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    Workflow Execution: SAP Business Workflow Run-Time System

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    The SAP Business Workflow run-time system consists of three logic units: the Workflow Manager, Work Item Manager, and Event Manager. The Workflow Manager controls the sequencing of workflow processes by evaluating conditions and determining next steps. The Work Item Manager processes individual work items, including assigning them to employees, and monitors scheduling. Role decomposition at run-time further limits authorized employees for work items based on roles, responsibilities, and attributes of the workflow context. The Event Manager publishes status changes using events that can trigger tasks or reactivate workflows based on a publish-subscribe approach.

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    Workflow Execution: SAP Business Workflow Run-Time System

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    aravindascribd
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    The SAP Business Workflow run-time system consists of three logic units: the Workflow Manager, Work Item Manager, and Event Manager. The Workflow Manager controls the sequencing of workflow processes by evaluating conditions and determining next steps. The Work Item Manager processes individual work items, including assigning them to employees, and monitors scheduling. Role decomposition at run-time further limits authorized employees for work items based on roles, responsibilities, and attributes of the workflow context. The Event Manager publishes status changes using events that can trigger tasks or reactivate workflows based on a publish-subscribe approach.

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    Test

    Original Title

    BWF_08_E

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    The SAP Business Workflow run-time system consists of three logic units: the Workflow Manager, Work Item Manager, and Event Manager. The Workflow Manager controls the sequencing of workflow processes by evaluating conditions and determining next steps. The Work Item Manager processes individual work items, including assigning them to employees, and monitors scheduling. Role decomposition at run-time further limits authorized employees for work items based on roles, responsibilities, and attributes of the workflow context. The Event Manager publishes status changes using events that can trigger tasks or reactivate workflows based on a publish-subscribe approach.

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    © All Rights Reserved
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    19 views4 pages

    Workflow Execution: SAP Business Workflow Run-Time System

    Uploaded by

    aravindascribd
    The SAP Business Workflow run-time system consists of three logic units: the Workflow Manager, Work Item Manager, and Event Manager. The Workflow Manager controls the sequencing of workflow processes by evaluating conditions and determining next steps. The Work Item Manager processes individual work items, including assigning them to employees, and monitors scheduling. Role decomposition at run-time further limits authorized employees for work items based on roles, responsibilities, and attributes of the workflow context. The Event Manager publishes status changes using events that can trigger tasks or reactivate workflows based on a publish-subscribe approach.

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    of 4

    Chapter 8

    Workflow Execution: SAP Business


    Workflow Run-time System
    The SAP Business Workflow run-time system is made up of three logic units:
    Workflow Manager
    Work Item Manager
    Event Manager

    Workflow Manager
    Any number of workflows can be derived from a Workflow Definition as
    run-time instances.
    The Workflow Manager is responsible for control and sequencing of the
    process. By evaluating conditions through object attributes and taking into
    account the results of individual steps, the Workflow Manager determines
    the following steps cued for processing.

    Work Item Manager


    Each workflow comprises a series of work items which represent the individual steps of a Workflow Definition at workflow run-time.
    Person

    Work Items

    Org. Unit

    Position

    Organization
    Task

    Role

    Reference

    WF Definition

    Processes

    Data
    Status
    change

    Read access

    Business Objects

    Attributes

    Step
    Data

    Events

    Call and
    results

    Methods

    Object

    Fig. 8-1: SAP Business Workflow: Architecture

    8-1

    Workflow Execution: SAP Business Workflow Run-time System

    These work items are carried out by operators (dialog work items) or in
    the background by the system (background work items).
    Dialog work items can only be carried out by employees who have the corresponding organizational authority (possible employees in charge of processing).
    The task of the Work Item Manager is to:
    process the execution of individual work items (including their
    assignment to employees in charge of processing them)
    schedule monitoring

    Role Decomposition at Run-time


    Determining the employees in charge of processing using role decomposition, further limits the number of authorized employees from a business
    point of view.
    z Role:
    Restriction of the
    possible agents according
    to the organizational model

    Customer Names
    A-G

    FI agent

    z Task (definition):
    post document
    z linked to job:
    FI agent
    z Role (agent):
    posting agent
    z role parameters:
    Customer
    Invoiced amount
    z Workitem (activity at runtime):
    post document 4712

    Customer Names
    H-N
    Customer Names
    O-Z

    z Customer - Manley Corp.

    Invoiced amount: < $ 50,000

    z Invoiced amount $258,300

    Invoiced amount : > $ 50,000

    Fig. 8-2: Roles

    It is critical that information flowing into role decomposition from the workflow environment is always current at run-time.
    Additional examples include:
    employee responsible for a certain material
    sales representative for a certain customer
    credit officer for a certain loan amount

    8-2

    Workflow Execution: SAP Business Workflow Run-time System

    Deadline Monitoring by the Run-time System


    The run-time system allows you to monitor the deadline for executing work
    items and the workflow as a whole. Deadline monitoring is a system function of SAP Business Workflow and is independent of any application functions.
    Deadlines (desired start date, latest end date) are always set relative to a
    reference point. This reference point can be:
    the start time of a workflow or a work item
    a date resulting only from the context of the application when the concrete workflow instance is executed (delivery date, latest payment date)

    Secondary Methods
    Additional information required for processing a work item can be displayed in a separate window, in parallel to actual processing, by means of
    secondary methods. This information can consist of, for example, previously
    entered original documents.

    Fig. 8-3: Extracts From an Archived Document as secondary method

    8-3

    Workflow Execution: SAP Business Workflow Run-time System

    Some decriptions of processing terms:


    approve invoice refers to the original invoice
    evaluate change in material refers to an engineering drawing
    set applicant status refers to applicant documentation

    Event Manager
    Event Parameters

    Events are used to publish status changes in application objects throughout


    the system. Events are identified by the object type about which they
    communicate something, and by their name. Event parameters contain
    information from the context of their creation.
    Which responses follow an event is defined outside the standard application.
    The consumer of the event can be any appropriate function module delivered by SAP, the customer, or an external supplier.
    Events can start tasks (single- or multi-step tasks) or reactivate running
    workflows that are waiting for specific events.

    Event Manager

    The event-consumer link follows a publish-and-subscribe approach:


    The event is generated and thereby announced to the event manager
    (published). The event-generating object does not need to know anything about potential consumers of the event.
    Interested consumers can log into a linkage table (subscribe).
    The event manager checks the entries in the linkage table and performs the
    assignment.
    Generating events for certain status changes of application objects not provided with the SAP standard is easy to do.

    8-4

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