Today’s modern application is often called a “cloud native application”. It is not your traditional or legacy application of yesteryear. The modern application attempts to address the failings of the monolithic application that is currently a burden for IT. Monolithic applications are difficult to upgrade and are tightly coupled interdependent applications. Any change in a version can break the entire application.
How it Works
Modern applications are based on microservices that are loosely coupled and consistent Application Programing Interfaces (API). The published API for all programs enables programmers to consistently create, manipulate, and program applications. The design of applications, based on published API’s can increase the ease of how infrastructure services are consumed. For example, databases, networks, storage, and compute systems with published API's lessen the difficulty of access to those services.
One key element to a modern application is the concept of microservices. Each application publishes a set of APIs, enabling the programmer to let two or more applications “talk to each other”. In general, each application provides microservices whose APIs specify how the software components interact with the programming GUI components. There is no single definition of a microservice. However, key elements of this service-oriented-architecture includes:
Loosely coupled services
Services in a microservices architecture that are independently deployable
Services that can be implemented using different programming languages, databases, hardware and software environment, depending on what fits best
The presence of this ecosystem allows for continuous integration and continuous development (CI/CD) methodologies. This avoids the waterfall method of application versioning that burdens monolithic applications. Changes to applications can be rapidly deployed and integrated into production and conversely reversed if required. In stark contrasts, monolithic applications that require a waterfall deployment have long gaps between versions, with each version taking immense testing cycles. Bugs are difficult to resolve and are slow to address.
WHY YOU NEED APPLICATION MODERNIZATION
The monolithic application is difficult to maintain over time. It quickly becomes a liability to an organization’s agility in responding to changing business requirements and environment. You most likely cannot re-tool your software and services quickly enough to meet your customers' needs.
Moving to a software defined architecture includes addressing the software and applications that utilize a modern software defined data center (SDDC) infrastructure. Hardware and software innovations can be quickly put into production and ideas rapidly brought to market before your competition can react.
BENEFITS OF APPLICATIONS-MODERNIZATION
DevOps work together: in lieu of Developers versus Operators
Faster time to market: solutions can be rapidly deployed
Solutions may also respond rapidly changing needs: not inhibited by slower, monolithic designs
Application mobility: modern applications can be faster and simpler to deploy in different locations (on premises in any cloud)
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