Is right to affirm not every SaaS is cloud software, but all Cloud software is SaaS?
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34answers:
1
A:
I don't think so. IaaS is also cloud, but not SaaS. SaaS is high-level and end-user focused, IaaS is low-level and deployer focused, PaaS is in-between and difficult to define (and the boundaries are very fluid too). Part of the complication is that business is all about taking services offered by one provider (person, company, etc.) and packaging it up with additional expertise and stuff (“value add”) to sell on to someone else (also a person, company, etc.) It all works recursively as deep as the economy can afford (i.e., there's no theoretical limit to how deep things can go, but there's only a finite amount of real money in the system to slice up before everyone gives up and joins a hippie commune).
Glossary:
- IaaS = Infrastructure as a Service: virtualized hardware for hire over the web
- SaaS = Software as a Service: virtualized deployed software for hire over the web
- PaaS = Platform as a Service: an integration of software and hardware for hire over the web that you can build other things upon
Donal Fellows
2010-10-25 15:23:18
In maturity model, SaaS level 4 is multi tenant,configurable and scalable...in Cloud all "as a service", SaaS in cloud is scalable and multi tenant by default, configurable is a consequence?(we talking about true cloud software not frankenstein's)
Stefhan
2010-10-25 15:40:56
@Stefhan: Bingo! I claim one internets! (Seriously, you've got lots of buzzwords in your comment and they seem to be crowding out the insight. Take a bit longer to explain exactly what you mean. Also be wary of “true *blah*” salesmen; they're usually just trying to stop you from considering their real competition properly.)
Donal Fellows
2010-10-25 21:24:25