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Software Application (Cloud Deployment (SaaS (Factors to be considered for…

- - - - Security Restrictions on Cloud
        
        No Unix access
        
        So, no direct customization of config files would work
        
        Only Http port is open to customers
        
        So, only UI / API exposed through HTTP only can be used
      - Application
        
        Application Architecture
        
        3 Tier Application
        
        Customization to be allowed in all 3 layers
        
        Database based Application
        
        In SaaS, access to DB must be built and exposed through UI
        
        Desktop Application
        
        JRMP/ Applets are not going to work any more in SaaS Model. Need to re-design.
        
        Integration with other applications outside of cloud
        
        Customization for integration with outside-cloud apps
        
        Authorization to Customize through Application (Business logic).
        
        Technology the product is using before migrating to cloud
        
        Latency requirement to be applied for applications which are real-time.
      - Tenancy
        
        Single Tenanted
        
        Multi tenanted
      - Acceptable Downtimes
        
        Hot Deployable Customization
        
        Syncing up the Application to Disaster Recovery Site
      - Application Upgrade
        
        Customization should not be affected after application of patch/upgrade