English Presentation
  Ricardo Batista And  Jose Lora

Software as a Service


Vídeo



What is SaaS?

 Software as a service is a way of delivering 

                applications over the Internet-as a service.

 Instead of installing and maintaining software, 

                you simply access it via the Internet, freeing 

                yourself from complex software and hardware

                management.

Architecture

  The vast majority of SaaS solutions are baseb 

               on a multi-tenant architecture.

 With this model, a single version of the 
                application, with a single configuration
                (hardware, network, operating system), is
                used for all customers("tenants")

Architecture


Architecture





                  To support scalability, the application is installed
                  on multiple machines (called horizontal scaling)

Architecture

Benefits

High Adoption


                 SaaS applications are available from any

                 computer or any device-any time, anywhere.

                 Because most people are familiar with using the

                 Internet to find what need, SaaS apps tend

                 to have high adoption rates, with a lower 

                 learning curve.

Benefits

Lower Initial Costs


            Saas applications are subscrition based. No
            license fees mean lower initial costs. Having the 
            SaaS provider manage the IT infrastructure, 
            and the people needed to manage it all.

Benefits

Accelerated feature delivery


 The application is hosted centrally, so an

                update is decided and esecuted by the

                provider, not by customers.

 The application only has a single
                configuration, making development testing
                faster.

Benefits

Accelerated feature delivery


                  The solution provider has access to user 
                  behavior within the application (usually via
                  web analytics), marking it easier to indentify
                  areas worthy of improvement.

SOFTWARE AS A SERVICE






                                     in-House Sofware                    SaaS

 Initial Investment                               yes                                         no


Maintenance Expenses                     yes                                         no


Risks from adadting to new             High                                      low

technology


The operational burden                information system(IS)    SaaS Solution

falls on      





Examples


SaaS Products

First Example

Instead of selling a copy of Microsoft Word with a license, you can use the form of "renting" the word processing software for about 5 dollars a month. This way you do not have to install any software, nor you'd be confined to a single computer to use this product. Just use your web browser and log in from any computer with internet access, and likewise you can access your documents. A good example of how SaaS works this is Google Docs (with the difference that Google Docs is free).


Analysis Application SaaS


 Compiere is an open soucer software for the 

 management and enterprise resource planning

 with over 1.4 milion downloads code.

                                                                                       


Analysis Application SaaS

                 It is a web-based ERP system

The business model of the company based on free trade eliminates software license fees, providing support, services, and product enhancements via an annual subscrition.   

                                                                                                         


Analysis Application SaaS


NetSuite has announced a new line of products, OneWorld for Sap, for companies that are subsidiaries of a corporation that has at its core SAP systems.   
                                                                                                                                                        



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