SaaS wrap-up the business applications over internet. These SaaS services are available by CSP providers and vendors as a unified application resource. CTOs and Devops needs to analyze the exact requirements for on-premise applications to move on SaaS platform to minimize the risk of software acquisition and to move the resources from reactive to a proactive state for implementation of value based systems. SaaS support the organization of all sizes and provide subscription based services to produce value-added systems and software.
Benefits of SaaS:
- Single instance – single instance of the application serves as one customer (tenant) for an application architecture, customer can customize the purchased version for their specific requirements. Multiple instances of the application are required to be configured for the updates.
- Multi tenancy – single instance of the application serves for multiple customers. Tenants can customize the user interface of any application as per the requirements. This is a cost saving factor as development and maintenance costs for any application under implementation are shared. Tenant has to update the entire architecture only once.
- Application Monetization – SaaS strategies are helping the independent software vendors (ISVs) to monetize their application architectures to increase revenue, pricing and packaging techniques. These can include the anti-piracy and IP protection analyses for all systems at on-premises and increase the profitability scenarios in the organization.
- Tenant isolation – Stop unwanted access of resources on one tenant from other. This excludes noisy neighbors on the farm and tenant data can be restored and customized according to the application and system requirements.
- Handling the Risks of Software Acquisition – SaaS allow the on-premise application architectures to be uploaded on cloud data centers to eliminate the risk of acquisition with respect to software and physical assets on the upfront and to decrease the expenses for on-premise infrastructure.
- Supervision on IT – By shifting the workloads of application’s execution, testing, maintenance and monitoring with SaaS deployment on cloud, the CSP owns the complete responsibility for all your application and system management for on-premise and the Chief information officer (CIO) and IT staff of the on-premise infrastructure is now capable to effectively execute their business models throughout the organization and to align the process infrastructure more accurately with the employees.
- Maximizing Availability, Scalability, and Elasticity – Availability of data should be carefully planned when migrating from on-premise to cloud data centers; SaaS provide best mechanism for storage and traffic managers to identify the failure in fetching the data through datacenters. Dividing the application on multiple elements will increase the application scalability in terms of processing the data, instances and without increase in cache size and message queues. With SaaS the number of web and worker role instances can be controlled which accelerates the elasticity in application execution.
- Licensing – SaaS with its multiple solutions for licensing allow tenants to go for the usage-based transaction models, which makes the user, billed for the number of services consumed per transaction.
- Location – Middle layer components of software and hardware entities are provided as a “black box” to support and enhance server performance.
- Management – SaaS completely owns the management of IT systems and services for any on-premise infrastructure and Service-level agreements include the commitment for quality, availability and maintenance support for all of the management provide by a CSP to its tenant.