Software as a Service or SaaS is an on-top application that is delivered through Web-based pay-as-you-go and subscription. The SaaS model may be acquired on an ad hoc basis. In the past, some SaaS services came unrecognized and, by design, were hidden behind certain software applications. In the recent years, however, SaaS increased in number, gradually becoming noted for a user interface that is essentially embeddable. Some SaaS come with configurability through, among others, preference keys for users. Programmers configure SaaS via certain parameters that are included, for example, within initialization calls.
On the other hand, Platform as a Service or PaaS is characterized by its integrated environment offer for the design, development, testing, deployment and support of various custom applications. Similar to the SaaS model, the PaaS works on a pay-as-you-go system. No large investments are required by PaaS, making it a good choice for internet service vendors.
In essence, PaaS presents itself as an RIA or rich Internet application as either a programming or a programmable environment. An example of the PaaS model is Bungee Connect. The Bungee Connect impresses as a Microsoft Visual Studio that transformed into RIA. In its adoption of the Paas model, Bungee Connect seems to be strongly mashing up the SaaS model. Another example is the database management system called Blist. Mainly, Blist caters users and not programmers. If it was more inclined toward getting the RIA, the Blist may seem like a Filemaker. With respect to enabling software models of lower-levels, an example of which is a management environment and database design called Elastra, which thrives in Amazon’s EC2/S3 and stands in competition with Oracle and others solutions of similar types.
SaaS has been outgrown by PaaS, some technology savvies say. PaaS makes all the required facilities that support the full software life cycle of building or delivering applications through the Web, while assuring the availability of services from the Internet. This can be done even without downloading or installation of software, making it easier to install to the delight of developers, Information Techonology managers or even end-user customers. This process is best known as the Cloudware system.
Primarily, PaaS is characterized by its offers, which include workflow facilities; the development of software application, and includes testing, deployment and hosting; plus other services that pertain to software applications. These extra supports for software application are provided as an over-the-Internet integrated solution, consisting of, among other things, marshalling and integration of web service, security, storage, scalability, persistence, versioning of application, facilitation of developer community and application versioning, integration of database.
Where SaaS leaves the relatively new concepts of integration or interactivity, the PaaS model picks up. As a particular example of the software model jump from SaaS to PaaS, Bungee Labs promised delivery of the concepts of easier usage and efficiency in cost. Subsequently, the Bungee Connect version enables a vendor to provide on-demand solutions for a full business cycle.
The Bungee Connect that adopts the PaaS model is able to produce rich software applications. It also allows the use of user interface that hold a striking resemblance to various desktop applications. According to Bunge’s vice president for Marketing Department, Lyle Ball, businesses may monitor an environment of integrated software solutions. In effect, PaaS does away with engaging directly with 20 or 25 solutions of various companies. Instead, a business may fully monitor its environment, integrating it into one solution.
Accordingly, developers are able find an entire “environment on demand” rather than relying upon local database.
Through PaaS, the drift leaning toward platforms from point solutions is a new trend that introduces “cloud computing.” This system serves not only small and medium business enterprises, but is also utilized by enterprised developers as well. In fact, most experts contend that PaaS in the long run, SMBs will pick up the business trend that works on PaaS, where money does not go to waste on licenses, among others. Bungee Connect users ultimately pay the actual resources that are consumed.
There are various experiments conducted by various companies to test and demonstrate their projects, including Microsoft Popfly, Yahoo! Pipes, Sales Force, Force, Google Search Engine, Rollbase, Long Jump, among others. Given these, PaaS is said to be more conservative and reasonable in terms of vendor management, while is likely to generate more sales.