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Applied Architecture Patterns on the Microsoft Platform by Stephen W. Thomas, Rama Ramani, Richard Seroter, Mike Sexton, Ewan Fairweather

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Chapter 17. Low-Latency Request-Reply

In a fast-paced web-based world, the need for up-to-the-minute information from external sources is critical in maintaining an effective web presence. From real-time inventory checks, to stock trades, to banking transactions, to large batch data processing, low-latency processing is essential. This chapter's use case will focus on low-latency message flow, which is a common pattern for data access with external systems following a Service Oriented Architecture (SOA)-based topology.

When interacting with external data sources, it is vital to produce efficient service calls that return external data without significant delay. Building a core foundation of enterprise services and aggregating results effectively ...

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