We provide the first formal model for declarative choreographies, which is able to express general omega-regular liveness properties. We use the Dynamic Condition Response (DCR) graphs notation for both choreographies and end-points. We define end-point projection as a restriction of DCR graphs and derive the condition for end-point projectability from the causal relationships of the graph. We illustrate the results with a running example of a Buyer-Seller-Shipper protocol. All the examples are available for simulation in the online DCR workbench at http://dcr.tools/forte19.
|Title of host publication||International Conference on Formal Techniques for Distributed Objects, Components, and Systems : FORTE 2019: Formal Techniques for Distributed Objects, Components, and Systems |
|Number of pages||19|
|Publication date||Jun 2019|
|Publication status||Published - Jun 2019|
|Series||Lecture Notes in Computer Science|
- Declarative models