Coordinated Atomic Actions and System Fault Tolerance

5. CA Action Design of Web ApplicationsGeneral requirements for CA actions in the Web context. They should allow for:• dealing with component systems that are outside of our control• relaxing entry/exit synchronization (people, documents, organizations, goods, etc.)• new participants to be forked/joined• other component systems to be invited/involved into an action when necessaryBut they should• keep atomicity, exceptions and error propagation under control• provide co-operative exception handlingWe rely on C.T. Davies’ concept of spheres of control while extending CA actions.We should talk about controlled atomicity.27 February, 2004