Requirements-Driven Collaborative Choreography Customization

Abstract

Abstract. Evolving business needs call for customizing choreographed interactions. However, conventional choreography description languages provide only a partial view of the interaction. Business goals of each participant and organizational dependencies motivating the interaction are not captured in the specification of messaging. Absence of this critical business knowledge makes it hard to reason if a particular customization satisfies the goals of participants. Furthermore, there is no systematic means to assess the impact of change in one participant's process (local view) on the choreography (global view) as well as on other participants' processes. To this end, we argue for the benefits of representing choreography at the level of requirements motivating the interaction. We propose a framework that allows participants to collaborate on customizing choreographed interactions, while reconciling their competing business needs. To bridge the worlds of messaging and requirements, we employ an automated technique for deriving a choreography description from the customized requirements.

A systematic literature review of service choreography adaptation

“…A good example of model transformation usage is provided by Mahfouz et al [48], in which models representing the global choreography, local orchestrations, and business requirements evolve in a coordinated way: updating one model triggers dynamic adaptation in the other models, avoiding inconsistencies among the models. In total, we grouped nine studies [2,5,10,48,19,8,6,13] into this category.…”

“…The study of Mahfouz et al [48] specifies a derivation algorithm that generates a choreography description based on requirements defined in the Tropos notation, an agent-oriented methodology for software development focused on organizational requirements at various levels of abstraction. Tropos models capture goals of participants in the interaction, mutual dependencies that motivate them to interact, and activities they un-dertake to achieve their goals, including physical activities.…”

“…Required intervention degree: Dar et al [6] consider both automatic and human-intervention, whereas Mahfouz et al [48] and Moo-Mena and Drira [13] consider only manual adaptation. All the others deal only with automated adaptation.…”

“…Implementations: Two following were found: the choreography customization framework [48], which implements a derivation algorithm; the DENEB [8], an ESB (enterprise service bus) based on Petri-nets that executes both choreographies and orchestrations; and the Executable Choreography Framework [5], which uses Aspect-Based Processes and an XML-based language to provide run-time refinement and composition.…”

Approach and Refinement Strategies for Flexible Choreography Enactment

“…In [10], a generic approach for propagation of local changes to directly as well as transitively dependent business partners is shown. A framework for collaborative choreography customization is presented in [16]. The so-called global (choreographies) and local views of each participant are expressed in the agent-oriented software development methodology Tropos.…”