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[ R e l e a s e N o t e s ]

The current Symbian Press list focuses very much on the small scale
features of Symbian OS in a programming context. The Architecture
Sourcebook is different. It's not a how-to book, it's a 'what and why'
book. And because it names names as it unwinds the design decisions
which have shaped the OS, it is also a 'who' book. It will show where
the OS came from, how it has evolved to be what it is, and provide a
simple model for understanding what it is, how it is put together, and
how to interface to it and work with it. It will also show why design
decision were made, and will bring those decisions to life in the words
of Symbian's key architects and developers, giving an insider feel to
the book as it weaves the "inside story" around the architectural
presentation. The book will describe the OS architecture in terms of the
Symbian system model. It will show how the model breaks down the system
into parts, what role the parts play in the system, how the parts are
architected, what motivates their design, and how the design has evolved
through the different releases of the system. Key system concepts will
be described; design patterns will be explored and related to those from
other operating systems. The unique features of Symbian OS will be
highlighted and their motivation and evolution traced and described. The
book will include a substantial reference section itemising the OS and
its toolkit at component level and providing a reference entry for each
component.