Bus 421 Research Paper

PaaS provides sets of services and workflows that targets developers, who can use shared tools, technologies, processes and APIs to fast

(4) Platform as a Service - This offers a development environment as a service. You can use this technology to develop your own applications that run on the providers server.

c. Platform as a service or the PaaS: Such services allow the clients to utilize developmental environments to design software applications.

For example, services like WFS will now be Software as a Service (SaaS) as they offer functionality, such as spatio-temporal query. Similarly, processing services like WPS (Web processing Services) where the computation resources are provided via PaaS (Platform as a Service) and IaaS (Infrastructure as a Service). The benefits of using a cloud computing infrastructure from a networking perspective are standardized service interfaces between different clouds; the existing publish-find-bind pattern for service interaction can be reused.

SaaS is becoming an increasingly prevalent delivery model as underlying technologies that support Web services and service-oriented architecture (SOA) mature and new developmental approaches, such as Ajax, become popular. SaaS is closely related to the ASP (application service provider) and On Demand Computing software delivery model

According to Joseph M. Mula’s article, “there was a recent announcement that several ERP providers have pronounced to become significant players in cloud computing. They were all shifting from being software as a service (SaaS) provider to a platform as a service (PaaS) provider. They started to incorporate mobile platforms such as iPads and smartphones to deliver users access to applications and on-demand any relevant information according to their needs.”9

For implementing this project we are making use of service composition of DaaS and negotiation Mechanism:

market needs. The primary goal of this research is to take an in depth look at PaaS

There is mix of niche and multi-industry could vendors in the market. One example of a niche industry-focused solution is Veeva, a provider of cloud based solution for medical representative in the pharma industry that has generated impressive growth and margins. One of the most important reason or the success was the competition that was present was only for on-premise technology and couldn’t compete with the more mobile and cloud solution, which was needed for this profile.

Software as a Service (SaaS) is the capability of users or consumers to use the provided application that runs over a cloud infrastructure. These services can be accessed from different users computers through Web browsers. LinkedIn is an example of the SaaS.

SaaS or Software as a Service is developing, swiftly, into the dominant delivery model to meet the requirements for organizations from SMB’s to Enterprise. Unlike purchasing on-premises software and compromising with its bugs, quirks and functionality or lack thereof, organizations are switching to cloud-based software. With the many companies offering cloud-based services from SaaS, PaaS, IaaS, etc., they expect fully functional, bug-free software to perform flawlessly, at best, or software issues that arise, rectified ASAP or they’ll switch to a competitor’s SaaS.

PaaS provides a software development and deployment tools over the web. It is targeted to software developers (plays a key role in DevOps). Like SaaS, it provides hardware on which applications can be ran on, with additional resources such as integrated development environments and development libraries. This model may need some level of configuration from the user to meet their requirements. (Sushil, et al., 2010, p. 61)

SaaS is a method of software that allows data to be accessed from any device with an internet connection. In the web-based model,

Cloud computing is a fairly new technology; it is separated into three separate categories. The first is Infrastructure as a Service (IaaS) this service is mainly used by companies to cut the cost of buying computer hardware such as servers , they also save on maintenance cost since the virtual servers is maintained by the company that rents them [1]. The second category is Software as a Service (SaaS) this service deals with providing software which is usually rented, this allows users to have multiple users whereas normal software limits the amount of users [1]. The last category Platform as a Service (PaaS) is used as a tool to develop software [1]. All these services offered by Cloud Computing are done virtually where you access

In SaaS, applications are hosted by a vendor or service provider and made available via a network to clients, in most cases through the Internet. Platform as a Service (PaaS) is often used for providing operating systems and associated services via Internet which doesn’t require any downloads or installation by the client. Infrastructure as a Service refers to outsourcing the equipment that is used to support operations, such as hardware, servers and other networking pieces.