3.3 Service Delivery using HTTP 

Service delivery via HTTP will now be examined including what the monitoring 

requirements of such services might be and the methods available. 

3.3.1 Anatomy of A Web Delivered Service 

Services and the delivery mechanisms for them are changing from locally managed and 

specific application interfaces for each service, towards remotely managed and Web 

delivered accessible via a web browser. A service can typically be any information based 

service that is provided to a customer. For example, the Web based Email services that are 

provided free by Yahoo and Hotmail are typical examples of web delivered services.  The 

following illustration is a simplified overview to how a typical service is provided via 

HTTP. 

z 

Figure 5: Illustration of path taken for a HTTP request and response 

Taking a high level look and ignoring details of routing and Domain Name System (DNS) 

requests, let's examine how a typical transaction occurs when a end user accesses the 

service. 

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