Workflow fragments of layer hierarchy detection and recommendation

Recently, workflow fragments gains increasing momentum for reuse and re-purpose in Cyber-Physical Systems. To the end, this article proposes to detect and recommend workflow fragments gratifying e-Scientist requirement. Specifically, most common workflow fragments in the form of layer hierarchy are extracted from scientific workflows, which are collected in the myExperiment repository. Annotations for those workflow fragments are developed to support the discovery of workflow fragments. Consequently, an approach for workflow fragments rank and recommendation is presented considering the semantics and structure of workflow fragments.