Second, the event-based rendering method,
known as push, enables a server-side backend process to transmit content to a user. This activity
is characteristically triggered by business or technological rules that dictate the intervals at which
a user??™s presentation layer is refreshed with new information. Third, a combined approach to
On-Demand
Rendering
Rendering Machine
Event-Driven
Rendering
Combined
Rendering
Paradigm
EXHIBIT 15.18 RENDERING MODELS
Architectural Concepts as Machines 327
presentation-layer information rendering can be attained by employing both methods: on-demand
and event-based (pull/push). This choice has been gaining popularity because of its combined
technological approach to updating a user interface.
Data Machine. The data machine concept is vital to almost any technological implementation.
This architectural concept depicts a wide range of data manipulation and handling activities,
data serving, such as data aggregation, validation, searching, and enrichment. These operations
are typically performed by data repository products or by software platforms, middleware, and
services. They take place during message exchange between technological constituents or are
processed during off-peak hours by the backend system.
There are three major assets that the data machine controls and manages for consumer
and service transaction sessions:
1. Data. This is typically raw material that in most circumstances is not readable and is
hard to interpret.
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