Surendra Reddy has released an Internet Draft for Event
Notification Protocol (ENP), a notification mechanism
based on WebDAV.
In the introduction, Reddy writes:
As the complexity of distributed applications
increases, an
increasing amount of processing is done using distributed
processes,
which typically execute without the direct supervision of
an end
user. The user must poll these processes periodically to
check if
they are completed successfully or not. This polling
results in
unnecessary wastage of network bandwidth as well as
computing
resources
In order to solve this problem, Reddy's ENP provides "a
lean and mean
protocol with a client side semantics for processing
notifications." Using the HTTP extensions PROPFIND and
PROPPATCH from WebDAV, ENP uses XML payloads to express its
requests and responses.
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