As the number of services and the size of data involved in workflows increases, centralised orchestration techniques are reaching the limits of scalability. In the classic orchestration model, all data passes through a centralised engine, which results in unnecessary data transfer, wasted bandwidth and the engine to become a bottleneck to the execution of a workflow. This paper presents and eva...

Previous workflow mining works have concentrated their efforts on process behavioral aspects. Although powerful, these proposals are found lacking in functionalities and performance when used to discover transactional workflow that cannot be seen at the level of behavioral aspects of workflow. Their limitations mainly come from their incapacity to discover the transactional dependencies between...

ly, computational workflows may be understood as a directed acyclic graph (DAG), a kind of finite graph which contains no cycles and which must be traversed in a specific direction. In this representation, each node is an individual executable command. The edges in the DAG represent execution variables (data elements such as files or parameters) which pass from upstream nodes to downstream ones...

It is a large and complex task to design and implement a workflow management system that supports scalable executions of largescale scientific workflows in distributed and unstable Grid environments. In this paper we describe the Distributed workflow Enactment Engine (DEE) of the ASKALON application development environment for Grid computing. DEE proposes a de-centralized architecture that simp...

In this era of BigData, designing a workflow to gain insights from the vast amount of data has become more complex.There are several different frameworks which individually process the batch and streaming data but coordinating the jobs between the engines in the workflow creates a performance penalty and other performance issues. Current workflow systems typically run only on one engine and do ...

This paper proposes a web-based interactive workflow definition and invocation system assisting users in orchestrating a set of distributed services-activities and expressing complex dependencies between them in XML. We use Ant, which is a Java-based and freely distributed commodity tool, for workflow definitions and workflow engine. Adopting Ant as a workflow engine provides platform independe...

engine. A workflow engine therefore is a MAS capable of managing instances of the workflow schema used for the instantiation of AWEF. Each MAS adopts a hierarchical organizational structure composed by an EnacterAgent, which is responsible of the activation and monitoring of the workflow, one or more ManagerAgents, which are responsible of the execution and control of the workflow/subworkflows ...