New business models incorporating cloud technology concepts will again change information technology in the future. Cloud computing will open new doors to the world of software development enabling programmers to build a conceptual product. The product will be marketed in a faster, easier and cost-efficient way. Virtualization is the ability to increase computing efficiency to bring the enterprise scale infrastructure to small and medium businesses. Cloud computing programming will ensure scalability and enable programmers to concentrate on the strategic aspect of software development.
Software development in the cloud centers upon the components of the Service Oriented Architecture (SOA) model. IaaS (Infrastructure As A Service) providers rent the necessary hardware resources such as network equipment, server space, storage space, memory and CPU cycles. PaaS (Platform As A Service) is also known as Cloudware. PaaS is divided into two different platforms. The first is a collaborative platform for software development focusing solely on workflow management.
PaaS also permits the creation of software utilizing proprietary data from an application as a method to develop applications relying upon a common data form or type. PaaS platforms provide the resources needed to develop applications and services from the Internet eliminating the need to download or install the software. SaaS (Software As A Service) hosts applications as a service to customers accessing these applications from the Internet. Benefits of SaaS include spending less money for the service, improved marketing, proven security, and increased reliability and bandwidth.
Cloud computing offers easier infrastructure scalability and cloud software developers need to develop additional skills to design software applications. Learning more about scalability includes learning to distribute workloads properly between functional units and correctly profiling code. Programmers developing code for the cloud environment should also consider the security issues of authentication and authorization. Keeping up to date with the latest security laws regarding data, selecting providers, matching business requirements and focusing upon data security is essential for ensuring that data remains secure at all times. There are differences in architectural software design in a cloud development environment.
Developers mastering service-oriented architecture (SOA) will be better prepared to code cloud software applications. Software developers moving from the development of enterprise systems to cloud systems should understand distributed computing and load balancing. The enterprise model is an extension of the web application model laying the foundation for cloud computing that requires strict enterprise architecture.
The implementation of web services in the cloud requires that software developers pay attention to functionality. Functional programming defines functions dynamically to act on data without the state. These functions should be evenly distributed to all cloud servers that will run the software after the development and testing stages have been completed.
Cloud programmers should be knowledgeable about system administration issues. These areas include how to reduce memory, CPU consumption, application performance, resource leaks and creating a model that will calculate how many users will be supported at each server instance size. Cloud programmers building software applications in the cloud should monitor problems that may occur with bandwidth, CPU, and memory. Software developers working in a cloud environment should master the new APIs called for by the application and other new development tool features used for cloud deployment.