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SubjectRe: 2.7 thoughts: common well-architected object model
asdfd esadd wrote:
> So let me restate the need:
>
> * a unified well architected core component model
> which is extensible from OS services to application
> objects
>
> * the object model should be defined from the kernel
> layer for process/events/devices etc. up and not
> started at the application layer

A few years ago, I would have agreed with you. But in today's reality,
an OS-based object model provides a singular target for malicious attack.

The theory of reusable binary components is seductive, yet it leads to
many of the flaws seen in Windows. All too often, Windows applications
install components which may be newer or even older than the ones they
replace; while Microsoft has made strides with component versioning, the
problem still exists. These days, many Windows applications ship their
own version of "common" components, to avoid incompatibilities with
whatever may be installed system-wide.

OS-based object models also suffer from bit rot. New hardware and
software features require API changes, such that older objects gradually
become incompatible with newer requirements.

Windows also has the advantage of focusing on a single hardware
platform, where Linux runs on an incredible variety of systems.

Were Linux to implement an object model, it would need careful and
considerate design to address security, versioning, extensibility, and
portability.

--
Scott Robert Ladd
Coyote Gulch Productions (http://www.coyotegulch.com)
Software Invention for High-Performance Computing

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