There are three delivery models in cloud computing:
    https://www.ibm.com/cloud/learn/iaas-paas-saas
    SaaS:   software as a service,
    PasS:   platform as a service,
    IaaS:   infrastructure as a service.

There are three different deployment models in cloud computing:
    private,
    public,
    hybrid. 

Our products: Prism,
    https://www.epam.com/migvisor-by-epam-accelerate-your-migration-to-google-cloud-platform
    https://solutionshub.epam.com/solution/maestro
    https://solutionshub.epam.com/solution/epam-delivery-platform