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However, use of pub/sub messaging is completely new. Understanding how this aspect will work in WIS2 is an obvious priority. Where to run brokers? What is the overall broker architecture? One single redundant broker in the cloud for everything. Probably not… mandate a broker per NC, per DCPC, per GISC. Maybe - but is it efficient? So the purpose of the “broker” component is to address this kind of question.
See: Pub/Sub Messaging sub messaging for WIS2 and Message Queue Protocols (MQP)
Providing data access
Data access (aspect #1) is a crucial part of WIS2. This may occur in one of three modes (listed in order of increasing complexity):
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