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SaaS is a continually evolving mix of existing and emerging technologies and business models and as I have suggested seems to be best described in terms of the following six characteristics (although I am sure there are more). Application Licensing Location
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The final and perhaps all encompassing characteristic of SaaS is described in terms of reach or rather the size of the new global markets into which these products instantly play. This is an obvious draw but with significant side effects. The fact that
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Another common characteristic of SaaS at present is the emergence of the online SaaS developer communities that typically surround a particular application often extending the platform capabilities, providing integration solutions etc. These often arise
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SaaS applications are characteristically completely managed by the vendor . The implementation of management tasks and responsibilities is opaque to the subscriber and Service-level agreements (SLAs) govern the quality, availability, and support commitments
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In terms of location a SaaS Application is most readily associated with that of an internet hosted web application (and hence hosting may have been a better description in hindsight). However, in reality this only represents one of many location (hosting)
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Today a SaaS application is most readily recognised and associated with user interactive web applications accessed directly over the internet (eg. the web application). Already synonymous with the SaaS phenomena is the likes of the infamous Salesforce.com
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The world of IT doesn’t stand still and never has this been truer than it is today. SOA and related concepts are still riding strong on the wave but a new contender is starting to make its way through into the mainstream; this being the concept of Software
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