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Comprehensive Information on Platform as a Service

Platform as a service (PaaS) is a type of cloud service model. In PaaS a platform is delivered by a service provider to its clients for the purpose of developing, running and managing applications without having to build and maintain the necessary infrastructure.

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Comprehensive Information on Platform as a Service

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  1. Comprehensive Information on Platform as a Service

  2. Table of Contents • The Cloud • Cloud Service Models • Platform as a Service (PaaS) • PaaS Delivery • PaaS Characteristics • PaaS Advantages • When to Use PaaS • PaaS Challenges • Integration • Customization of Legacy Systems • Operational Limitation • Vendor Lock-in • Runtime Issues • Data Security

  3. The Cloud • A cloud refers to those servers that are accessible over the Internet as well as the databases and the software that run on such servers. Cloud servers exist in data centers. Companies and users don’t need to manage physical servers when they use cloud computing. They don’t have to run software applications either on their machines for cloud computing. Any device connected to the Internet can be used to access the same files and applications with the aid of cloud computing. The cloud offers the benefits of enhanced scalability and functionality along with cost savings. • Cloud technology is used in cloud hosting, which is a type of web hosting service. Web hosting makes websites accessible over the Internet. This service is provided by website hosting companies and it can be of different types, such as shared, dedicated, reseller, VPS, cloud, WordPress etc. The terms “Windows Shared Web Hosting”, “Linux Dedicated Hosting”, “Linux Reseller Hosting” refer to different types of web hosting services.

  4. Cloud Service Models YELLOW Cloud service models are of three types which are distinctly different from each other. These are capable of forming a comprehensive cloud service model by interacting with each other. The three types of cloud service models are mentioned below- • Infrastructure as a Service (IaaS) • Platform as a Service (PaaS) • Software as a Service (SaaS) • Platform as a Service (PaaS) will be the focus of the content of the following slides.

  5. Platform as a Service (PaaS) • Platform as a service (PaaS) is a category of cloud service models. It provides the platform to customers for developing, running, and managing applications without having to deal with the complexity of building as well as maintaining the infrastructure that is typically needed for developing and launching applications. • PaaS vendors provide all the necessary development tools, infrastructure and the operating systems over the Internet that are needed for building an application. • Examples of PaaS are Windows Azure, AWS Elastic Beanstalk, Force.com, OpenShift, Google App Engine and Heroku.

  6. PaaS Delivery PaaS can be delivered in three ways. These are mentioned below. It can be delivered by a provider as a public cloud service. The consumer controls the deployment of software in it with minimal configuration options. The networks, servers, database, storage, operating system (OS), middleware and other relevant services are provided by the provider for hosting the application of the consumer PaaS can be delivered as a private service behind a firewall It can be delivered as a software that is deployed on a public infrastructure as a service or the “Top Cloud Hosting Company”.

  7. PaaS Characteristics YELLOW The main characteristics of PaaS, which define it as a cloud service, are as follows- • Built on virtualization technology. Hence, resources can be scaled up or down very easily as per business requirements • Integrates databases and web services • Provides many services that aid with the development, testing as well as the deployment of apps • Many users can access it through the same development application

  8. PaaS Advantages YELLOW Regardless of the size of an organization, PaaS offers numerous advantages. These are mentioned below. • It is scalable • It makes development and deployment of apps easy as well as cost-effective • It has high availability • It ensures automation of business policy • It reduces the need for coding significantly • Apps can be customized by developers without being bothered about software maintenance • It makes it easy to migrate to a hybrid model

  9. 1-800-123 -8156 Whoa! That’s a big number, aren’t you proud?

  10. When to Use PaaS YELLOW • PaaS can be used to streamline workflows in the event that many developers are working on the same project. If other vendors are included, then the entire process can benefit from the enhanced speed and flexibility that it provides. It is especially beneficial when there is a need for the creation of customized applications. PaaS can be used when there is a requirement to reduce costs considerably and do away with the challenges that are encountered while developing or deploying an app quickly.

  11. PaaS Challenges PaaS presents certain challenges with regard to data security, vendor lock-in, integration, runtime issues, operational limitations and customization of legacy systems. These will be discussed in more detail in the following slides.

  12. Integration There is an increase in the complexity with regard to connecting the data of an onsite data center and an off-premise cloud. Integration with the existing services as well as infrastructure can be challenging when not all the components of a legacy IT system are built for the cloud.

  13. Customization of Legacy Systems Many customizations and changes in configuration might be needed in order to ensure that legacy systems work perfectly with PaaS service. Such a customization can give rise to a complex IT system.

  14. Operational Limitation Cloud operations that are customized and have management automation workflows might not apply to PaaS solutions. This is because the platform usually limits end users’ operational capabilities. This loss of operational control might affect the way in which PaaS solutions are provisioned, operated and managed.

  15. Vendor Lock-in The requirements and the reasons that result in choosing a specific PaaS solution and/or vendor might change in the future. If the existing vendor doesn’t have convenient migration policies, opting for some other PaaS vendor might become challenging and it might impact one’s business.

  16. Runtime Issues PaaS solutions might not be optimized for frameworks of one’s choice. There might be a lack of availability with regard to specific framework versions or these might perform optimally with the PaaS service. It might not be possible for customers to develop custom dependencies with the platform.

  17. Data Security Organizations that use PaaS solutions have data in third-party cloud servers that are controlled by the respective vendors. This can lead to security risks and give rise to concerns.

  18. Thanks! ANY QUESTIONS? You can find me at: www.htshosting.org support@htshosting.org

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