This paper proposes a framework for searching Workflow Patterns which candidate themselves to be reused. Targets can be different: this tool can be used in order to allow to a planner of new business processes of use general solutions to the common problems, that are evidently complex to be individualised (e.g. for the complexity of the application domain), for improving the quality of the business processes, moreover, a planner of new Web Service composite can examine the repository of single Web Services and the further repository of notable Web Service composite.

In fact the homogeneity among the solutions facilitates the organization, the realization and the control, increases the effectiveness and decreases the general costs (organisational, managerial, formative).

A process composed of more phases is defined for this purpose: analysis of the processes of workflow, candidacy of the patterns, semantic validation and assignment of the single patterns.

Therefore, this paper introduces equally the current state of the research in this area and a methodology for searching of patterns of workflow because I want individualise, from the analysis also of different workflow, parts of workflow that interact according to a determined model of interaction to get common objectives.

Finally, this paper presents the ARWOPS (Automatic Reusable WOrkflow Patterns Search) Tool that implements the proposed methodology and its application to a realistic case study is shown.