The center of a cloud ecosystem is a public cloud provider. It might be an IaaS provider such as Amazon Web Services (AWS) or a SaaS vendor such as Salesforce. Radiating out from the center of the cloud are software companies that use the provider’s anchor platform, as well as consultants and companies that have formed strategic alliances with the anchor provider.
There is no [vendor lock-in because these companies overlap, making the ecosystem more complex. For example, AWS is the center of its own ecosystem, but it’s also a part of the Salesforce ecosystem. Salesforce runs a number of its services on AWS’s infrastructure, and Salesforce customers can gain access, through devices called connectors, to pieces of AWS, such as its [Simple Storage Service (S3).
A robust ecosystem provides a cloud provider’s customers with an easy way to find and purchase business applications and respond to changing business needs. When the apps are sold through a provider’s app store such as [AWS Marketplace], Microsoft [Azure Marketplace(for cloud software) or Microsoft AppSource (for business applications), the customer essentially has access to a catalog of different vendors’ software and services that have already been vetted and reviewed for security, risk and cost.