Cloud application development:
What is a cloud application?
A cloud application, also known as a cloud app is basically a software program where many cloud-based components along with many local components work together. This model is based on remote servers for processing logic that can be accessed via a web browser with an optimum internet connection. Cloud application servers are located in a remote data center that is continuously operated by a third-party cloud services infrastructure provider.
We make it clear that most of us are already using cloud computing in our daily lives for personal use and show how enterprises are moving key applications to the clouds for improved customer experience, scalability, and cost control.
The big players in the field of cloud computing are Google, IBM, Microsoft, and Amazon.
Cloud-based application functions may include email, file storage, and sharing, order entry, inventory administration, word processing, customer relationship management (CRM), information collection, or some characteristics of financial accounting.
What are the benefits of cloud application?
Quick response to the needs and requirements of the company: All the cloud applications can rapidly be updated, tested and implemented to provide ample market time and agility to the business. With this speed, business operations can lead to cultural shifts and technological advancements.
- A simplified model of operations: The infrastructure management is simplified and can also be outsourced to any third-party cloud providers.
- Instant measures for scalability and flexibility: With cloud applications, the capacity can be adjusted across many devices.
- API usage: API refers to the Application Programming Interface. By using an API, many third party information, data sources and storage facilities can be obtained. By using APIs to hand over data to applications or API-based back-end services for processing or analytics computations, cloud applications can be kept smaller, with the results returned to the cloud application.
- Improvement in data sharing and security. Data stored on cloud services is instantly available to authorized users. Due to their massive scale, cloud providers can hire world-class security experts and implement infrastructure security measures that typically only large enterprises can obtain. Centralized data managed by IT operations personnel is more easily backed up on a regular schedule and restored should disaster recovery become necessary.
- Reduction in costs: Together with competition among suppliers, the size and scale of information centers run by significant cloud infrastructure and service suppliers have resulted in reduced rates. Applications based on the cloud can be less costly to run and retain than installation equivalents on site.
The concept of IaaS, PaaS, and SaaS
What is IaaS?
It stands for Infrastructure as service. It is also a form of cloud computing services. It is a cloud infrastructure service that enables remote data center infrastructure access, tracking and management, such as storage, networking, and networking. This enables the user to purchase their consumption-based hardware demands rather than purchase them completely. In an IaaS model, the cloud provider holds the ability to host the infrastructure components that traditionally present a data center which also includes data servers, storage, and networking hardware and the virtualization layers.
What is PaaS?
PaaS stands for Platform as a service. It is basically a cloud platform service that provides various cloud components that are used by applications and software for development. It makes it quick, easy and cost-effective for the user to develop, test and deploy apps. The supplier manages servers, storage operating systems, virtualization, and networking in a PaaS configuration. The apps are managed by the user. In PaaS, the users don’t have to worry about purchasing different hardware and software packages or to specifically hire an expert to do so. It provides complete flexibility and accessibility in installing or downloading the software on the system. A downfall of the PaaS infrastructure is the lack of interoperability and portability among providers.
Software as a service is also a cloud application service and the most popular and widely used cloud service. In this case, the software is provided to the user by the SaaS provider and is accessible from anywhere using a web browser. Due to its web delivery model, SaaS does not require any installation or setup of individual computers to run the software.
Classification of cloud computing deployment methods:
- The public cloud: This deployment model is managed by the cloud service provider.
- The private cloud: This is managed by a specific organization.
- Hybrid cloud: This model is managed by the public and the organization.
- Community cloud: This model is managed by several organizations and cloud service providers
Cloud application development:
Cloud programming tools and instruments surely differ from many traditional systems. Their performance and efficiency can slow down in a numerous way and the integration process takes a whole new level of complexity. The companies need to focus on creating more such best practices to clear these hurdles. Many companies are progressively embracing cloud computing and technologies. Recent studies have shown that almost 76 percent of businesses have already transferred a major part of their data centers and infrastructure to the cloud. Many more deployments are on their way and will soon follow the new advancements. Around 52 percent of enterprises with more than 1,000 employees plan to increase spending in this area by the year 2015.
The application development process typically involves a series of interactions among the development team and members of one or more business units. The groups then work together to outline design specifications, write the code, test the system and eventually deliver the application. With the cloud, the process remains largely for the organization to work on.
Cloud development philosophy:
- Build appropriate technology
- Aim for resilience
- Facilitate resilience, availability, and scalability.
- Integrate with other services
- Build applications for the cloud and develop the technology and systems simultaneously.
- Develop modular applications that integrate with other services and API tools to simplify the development and management tools.
- Re-architect various legacy applications using a cloud-based approach only.
Cloud computing offers many different types of advantages for software development particularly because it offers the possibility of elastic resource allocation across the servers.
Cloud computing also facilitates the collaboration at lower costs and with a maximum efficiency of services.