Workflow management system

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A workflow management system (WfMS or WFMS) provides an infrastructure for the set-up, performance, and monitoring of a defined sequence of tasks arranged as a workflow application.

Contents

International standards

There are several international standards-setting bodies in the field of workflow management:

The underlying theoretical basis of workflow management is the mathematical concept of a Petri net. [4]

Each of the workflow models has tasks (nodes) and dependencies between the nodes. Tasks are activated when the dependency conditions are fulfilled.

Workflows for people

WfMS allows the user to define different workflows for different types of jobs or processes. For example, in a manufacturing setting, a design document might be automatically routed from a designer to a technical director to the production engineer. At each stage in the workflow, one individual or group is responsible for a specific task. Once the task is complete, WfMS ensures that the individuals responsible for the next task are notified and receive the data they need to execute their stage of the process.

Workflows can also have more complex dependencies; for example, if a document is to be translated into several languages, a translation manager could select the languages and each selection would then be activated as a work order form for a different translator. Only when all the translators have completed their respective tasks would the next task in the process be activated. It is process management from the top level to the lower level.

WfMS also automates redundant tasks and ensures that uncompleted tasks are followed up. A key standard that deals with human tasks in workflows is the WS-BPEL4People Standard by the OASIS Standards Body.

Automated workflows

WfMS may control automated processes in addition to replacing paperwork order transfers.

For example, if the above design documents are now available as AutoCAD but the workflow requires them as Catia, then an automated process would implement the conversion prior to notifying the individual responsible for the next task. This is the concept of enterprise application integration.

WfMS also appears in distributed IT environments such as grid computing or cloud computing. Such systems aim to manage the execution of various processes that may belong to the same application while in many cases they are used as a means to guarantee the offered quality of service (QoS). [5]

WfMS may also be enhanced by using existing enterprise infrastructure such as Microsoft Outlook or Office 365. [ citation needed ]

Categories

Components or subsystems of WfMS can be categorized into the following categories:

This is the basic function of a WfMS. It conduces to the routing of the flow of information or document flow, it transmits the information from one work item to the next one. This feature will not respond to exceptional circumstances.
This function is an expansion. It detects exceptional circumstances and transmits the information to designated work positions. With a dynamic assignment, it can assign new tasks to underworked positions, to achieve a continuation or a balance of workload within the workflow.
This function coordinates concurrent activities to prevent resource conflicts or priority conflicts.
This function performs automated legwork, relieving the executing instance of operations that require no decision-making.
This feature extends the previous features to a process adjustment instance and for proposals for further actions. The basics involve methods of artificial intelligence.

Functional categorization

Workflow systems can be categorized in the following categories based on their functionalities:

List of notable WfMS

ActivityBuilt-in WfMS as part of the function

See also

Related Research Articles

<span class="mw-page-title-main">Workflow</span> Pattern of activity often with a result

A workflow is a generic term for orchestrated and repeatable patterns of activity, enabled by the systematic organization of resources into processes that transform materials, provide services, or process information. It can be depicted as a sequence of operations, the work of a person or group, the work of an organization of staff, or one or more simple or complex mechanisms.

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The Web Services Business Process Execution Language (WS-BPEL), commonly known as BPEL, is an OASIS standard executable language for specifying actions within business processes with web services. Processes in BPEL export and import information by using web service interfaces exclusively.

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<span class="mw-page-title-main">Business process modeling</span> Activity of representing processes of an enterprise

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<span class="mw-page-title-main">XPDL</span>

The XML Process Definition Language (XPDL) is a format standardized by the Workflow Management Coalition (WfMC) to interchange business process definitions between different workflow products, i.e. between different modeling tools and management suites. XPDL defines an XML schema for specifying the declarative part of workflow / business process.

Workflow Management Coalition (WfMC) was a consortium formed to define standards for the interoperability of workflow management systems. The coalition was disbanded in 2019 and no longer exists.

Wf-XML is a BPM standard developed by the Workflow Management Coalition.

A workflow application is a software application that automates, to at least some degree, a process or processes. The processes are usually business-related but can be any process that requires a series of steps to be automated via software. Some steps of the process may require human intervention, such as approval or the development of custom text, but functions that can be automated should be handled by the application. Advanced applications allow users to introduce new components into the operation.

<span class="mw-page-title-main">Apache ODE</span>

Apache ODE is a software coded in Java as a workflow engine to manage business processes which have been expressed in the Web Services Business Process Execution Language (WS-BPEL) via a website. It was made by the Apache Software Foundation and released in a stable format on March 23, 2018. The software principally communicates with one or more Web services, sending and receiving messages, manipulating data and handling exceptions (errors) as defined by any given process. The engine is capable of running both long and short living processes to coordinate all the services that make up a service or application (orchestration).

BPELscript is a language to specify BPEL processes. It provides a compact syntax inspired by scripting languages such as JavaScript and Ruby and a full coverage of all features provided by BPEL.

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Imixs Workflow is an Open-Source-Project, providing technologies for building Business Process Management solutions. The project focus on human based workflows used to execute and control workflows in organisations and enterprises. In difference to task-oriented workflow engines, which focus on automated program flow control (tasks), Imixs Workflow is a representative of an event-based workflow engine. Here, the engine controls the status of a process instance within a defined state-diagram. By entering an event, the state of a process instance can be abandoned or changed. In human-centric workflow engines, events usually occur by an interaction of the actor with the system, for example by approving or rejecting a business transaction. They can also be triggered by scheduled events. An example of this is an escalation of an unfinished task.

WorkflowGen is a web-based low-code business application creation solution developed by Advantys. As a workflow software and business process management (BPM) solution, WorkflowGen enables organizations to automate human and system-based processes via a visual interface in a low programming environment.

<span class="mw-page-title-main">Frank Leymann</span> German computer scientist and mathematician

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References

  1. Workflow Management Coalition "Workflow Management Coalition". Workflow Management Coalition. 2022-11-24. Retrieved 2022-12-04.
  2. World wide web consortium "World Wide Web Consortium (W3C)". World Wide Web Consortium (W3C). 2022-12-02. Retrieved 2022-12-04.
  3. "OASIS Open". OASIS Open. 2022-11-17. Retrieved 2022-12-04.
  4. Hartmut Ehrig (25 November 2003). Petri Net Technology for Communication-Based Systems: Advances in Petri Nets. Springer. pp. 323–. ISBN   978-3-540-20538-8.
  5. An innovative workflow mapping mechanism for Grids in the frame of Quality of Service, Kyriazis, Dimosthenis; Tserpes, Konstantinos; Menychtas, Andreas; Litke, Antonis; Varvarigou, Theodora (2008). "An innovative workflow mapping mechanism for Grids in the frame of Quality of Service". Future Generation Computer Systems. 24 (6). Elsevier BV: 498–511. doi:10.1016/j.future.2007.07.009. ISSN   0167-739X.