Software vendors are slowly moving away from the traditional delivery models for shipping software. The pains involved in certifying products on multiple platforms, complex upgrade processes, maturity of virtualization technology, use of open source software, simpler licensing and pricing models, application isolation, greater hardware elasticity,
quicker sales cycle, plug and play software and lower TCO are some of the key factors fuelling the adoption of "software as an appliance" delivery model. Product managers should evaluate this concept as a key component of their strategy. Here is a simple definition of a software appliance.
- Software appliance = Just enough operating system + S/W application that is ready to be consumed. This is it. Packaging could be in either on a virtual machine or a physical machine or CD etc
- Virtual appliance = S/W appliance supported by a Virtualization platform. Check out the VMWare marketing place to see a few examples
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