A FLEXIBLE FAILURE-RECOVERY MODEL FOR WORKFLOW MANAGEMENT SYSTEMS

2005 ◽  
Vol 14 (01) ◽  
pp. 1-24 ◽  
Author(s):  
GWAN-HWAN HWANG ◽  
YUNG-CHUAN LEE ◽  
BOR-YIH WU
Keyword(s):  
Flow Analysis ◽  
Workflow Management ◽  
Object Oriented ◽  
Failure Recovery ◽  
Management Systems ◽  
Recovery Model ◽  
Workflow Management Systems ◽  
Data Flow Analysis ◽  
Workflow Execution ◽  
Failure Handling

In this paper, we propose a new failure-recovery model for workflow management systems (WfMSs). This model is supported with a new language, called the workflow failure-handling (WfFH) language, which allows the workflow designer to write programs so that he can use data-flow analysis technology to guide the failure recovery in workflow execution. With the WfFH language, the computation of the end compensation point and the compensation set for failure recovery can proceed during the workflow process run-time according to the execution results and status of workflow activities. Also, the failure-recovery definitions programmed with the WfFH language can be independent, thereby dramatically reducing the maintenance overhead of workflow processes. A prototype is built in a Java-based object-oriented workflow management system, called JOO-WfMS. We also report our experiences in constructing this prototype.

A Fully Distributed Architecture for Large Scale Workflow Enactment

2003 ◽  
Vol 12 (04) ◽  
pp. 411-440 ◽  
Author(s):  
Roberto Silveira Silva Filho ◽  
Jacques Wainer ◽  
Edmundo R. M. Madeira
Keyword(s):  
Large Scale ◽  
Single Point ◽  
Workflow Management ◽  
Management Systems ◽  
Centralized Control ◽  
Dynamic Allocation ◽  
Workflow Management Systems ◽  
Client Server ◽  
Workflow Execution ◽  
Distributed Components

Standard client-server workflow management systems are usually designed as client-server systems. The central server is responsible for the coordination of the workflow execution and, in some cases, may manage the activities database. This centralized control architecture may represent a single point of failure, which compromises the availability of the system. We propose a fully distributed and configurable architecture for workflow management systems. It is based on the idea that the activities of a case (an instance of the process) migrate from host to host, executing the workflow tasks, following a process plan. This core architecture is improved with the addition of other distributed components so that other requirements for Workflow Management Systems, besides scalability, are also addressed. The components of the architecture were tested in different distributed and centralized configurations. The ability to configure the location of components and the use of dynamic allocation of tasks were effective for the implementation of load balancing policies.

scholarly journals Watchdog 2.0: New developments for reusability, reproducibility, and workflow execution

GigaScience ◽  
2020 ◽  
Vol 9 (6) ◽  
Author(s):  
Michael Kluge ◽  
Marie-Sophie Friedl ◽  
Amrei L Menzel ◽  
Caroline C Friedel
Keyword(s):  
Large Scale ◽  
Workflow Management ◽  
Biological Data ◽  
Management Systems ◽  
Workflow Management Systems ◽  
Computer Clusters ◽  
New Developments ◽  
Workflow Execution ◽  
Biological Data Analysis ◽  
Log File

Abstract Background Advances in high-throughput methods have brought new challenges for biological data analysis, often requiring many interdependent steps applied to a large number of samples. To address this challenge, workflow management systems, such as Watchdog, have been developed to support scientists in the (semi-)automated execution of large analysis workflows. Implementation Here, we present Watchdog 2.0, which implements new developments for module creation, reusability, and documentation and for reproducibility of analyses and workflow execution. Developments include a graphical user interface for semi-automatic module creation from software help pages, sharing repositories for modules and workflows, and a standardized module documentation format. The latter allows generation of a customized reference book of public and user-specific modules. Furthermore, extensive logging of workflow execution, module and software versions, and explicit support for package managers and container virtualization now ensures reproducibility of results. A step-by-step analysis protocol generated from the log file may, e.g., serve as a draft of a manuscript methods section. Finally, 2 new execution modes were implemented. One allows resuming workflow execution after interruption or modification without rerunning successfully executed tasks not affected by changes. The second one allows detaching and reattaching to workflow execution on a local computer while tasks continue running on computer clusters. Conclusions Watchdog 2.0 provides several new developments that we believe to be of benefit for large-scale bioinformatics analysis and that are not completely covered by other competing workflow management systems. The software itself, module and workflow repositories, and comprehensive documentation are freely available at https://www.bio.ifi.lmu.de/watchdog.

scholarly journals A Component-based Product Line for Workflow Management Systems

2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Itana Maria De Souza Gimenes ◽  
Fabrício Ricardo Lazilha ◽  
Edson Alves De Oliveira Junior ◽  
Leonor Barroca
Keyword(s):  
Workflow Management ◽  
Product Line ◽  
Management Systems ◽  
Workflow Management Systems ◽  
Simulation Tools ◽  
Workflow Execution ◽  
Product Line Architecture ◽  
Workflow Management Coalition

This paper presents a component-based product line for workflow management systems. The process followed to design the product line was based on the Catalysis method. Extensions were made to represent variability across the process. The domain of workflow management systems has been shown to be appropriate to the application of the product line approach as there are a standard architecture and models established by a regulatory board, the Workflow Management Coalition. In addition, there is a demand for similar workflow management systems but with some different features. The product line architecture was evaluated with Rapide simulation tools. The evaluation was based on selected scenarios, thus, avoiding implementation issues. The strategy that has been used to populate the architecture and experiment with the product line is shown. In particular, the design of the workflow execution manager component is described.

Research and Design on P2P Business Process Execution Framework for Workflow Management Systems

2014 ◽  
Vol 989-994 ◽  
pp. 4771-4774
Author(s):  
Tao Wu
Keyword(s):  
Business Process ◽  
Large Scale ◽  
Workflow Management ◽  
Workflow Engine ◽  
Management Systems ◽  
Workflow Management Systems ◽  
Workflow Execution ◽  
Distributed Framework ◽  
Process Execution ◽  
Business Process Execution

Efficient business workflow management in large-scale areas is in great demand. However, current business workflow management systems are short of distributed workflow execution support. In our paper, we design and implement a distributed framework called PeerODE for Apache ODE (Orchestration Director Engine) [1], an open-sourced business workflow engine. PeerODE presents a scalable approach to P2P business process execution. The scheduling experiment on PeerODE shows that the framework handles the distributed business process execution effectively.

scholarly journals Integrating Open Grid Services Architecture Data Access and Integration with computational Grid workflows

2009 ◽  
Vol 367 (1897) ◽  
pp. 2521-2532 ◽  
Author(s):  
Tamas Kukla ◽  
Tamas Kiss ◽  
Peter Kacsuk ◽  
Gabor Terstyanszky
Keyword(s):  
Workflow Management ◽  
Data Access ◽  
Computational Grid ◽  
Management Systems ◽  
Grid Services ◽  
Integration Technique ◽  
Workflow Management Systems ◽  
Workflow Execution ◽  
Reference Implementation ◽  
Open Grid Services Architecture

Although many scientific applications rely on data stored in databases, most workflow management systems are not capable of establishing database connections during workflow execution. For this reason, e-Scientists have to use different tools before workflow submission to access their datasets and gather the required data on which they want to carry out computational experiments. Open Grid Services Architecture Data Access and Integration (OGSA-DAI) is a good candidate to use as middleware providing access to several structured and semi-structured database products through Web/Grid services. The integration technique and its reference implementation described in this paper enable e-Scientists to reach databases via OGSA-DAI within their scientific workflows at run-time and give a general solution that can be adopted by any workflow management system.

scholarly journals Specifying and Executing User Agents in an Environment of Reasoning and RESTful Systems Using the Guard-Stage-Milestone Approach

2021 ◽  
Author(s):  
Tobias Käfer ◽  
Benjamin Jochum ◽  
Nico Aßfalg ◽  
Leonard Nürnberg
Keyword(s):  
Linked Data ◽  
Operational Semantics ◽  
Workflow Management ◽  
Management Systems ◽  
Workflow Management Systems ◽  
The Web

AbstractFor Read-Write Linked Data, an environment of reasoning and RESTful interaction, we investigate the use of the Guard-Stage-Milestone approach for specifying and executing user agents. We present an ontology to specify user agents. Moreover, we give operational semantics to the ontology in a rule language that allows for executing user agents on Read-Write Linked Data. We evaluate our approach formally and regarding performance. Our work shows that despite different assumptions of this environment in contrast to the traditional environment of workflow management systems, the Guard-Stage-Milestone approach can be transferred and successfully applied on the web of Read-Write Linked Data.

Workflow management systems in radiology

1998 ◽  
Author(s):  
Thomas Wendler ◽  
Kirsten Meetz ◽  
Joachim Schmidt
Keyword(s):  
Workflow Management ◽  
Management Systems ◽  
Workflow Management Systems
Sign in / Sign up

Export Citation Format

Share Document