Assessing how cloud fits your requirements
Once you have established your cloud vision, you have achieved an understanding of the business context, and made an assessment of cloud suitability.
At this point you should have a good idea of whether cloud services will be part of your solution and what kind of cloud services to consider.
The next stage is to see whether those services fit your functional requirements and solution models.
For IaaS or PaaS, the functional requirement is simply for infrastructure or platform; unless you need special features – in which case you should probably not be considering a cloud solution – functional fit is not a problem.
For SaaS, you must establish that there are cloud services that meet your needs for application processing. For all kinds of cloud service, you then assess fit with the solution models.
Developing the models for your solution will take time and work. Do not expect them to appear magically as a result of your cloud architecture vision.
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