CHAPTER 14
Fish nor Fowl
SUMMARY
The most realistic scenario in large enterprises is a mixture of legacy on-premises applications, cloud IaaS or PaaS applications, and SaaS applications. All these applications are likely to need some level of integration with the rest.
Architectures that mix on-premises and cloud applications are likely to be present in enterprise IT for years to come. Many enterprises have successful applications deployed on their premises that are effective and efficient. As long as the investment in these applications continues to return sound economic value, the applications are not likely to be replaced by cloud deployments. In addition, security and regulatory compliance requirements make some applications ...
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