In the recent years, due to the Covid-19 pandemic, businesses are pushed into rapid business architecture transition where the key requirements are pivoted around resilient, flexibility and agility. With these three key requirements as the main themes of business trend, composable has become the future of business. Significantly, it is important for organisations to modernize their application portfolio by moving towards technology trends that empower the infrastructures that allows them to respond to increasing pace of change in business. This technology trend is called composable applications. Composable applications is a new term that matured from composable business which centralises around Microservices, APIs and Event Driven Architecture as its key components. What are the role of microservices, API and event as key components in composable applications?
Microservices or microservices architecture is defined as the architectural pattern that structures an application into smaller services that are possessed by small team, independently deployed, loosely coupled and highly testable and manageable. This key component dismisses every disadvantages carried by the monolithic architecture, the most used and long-established architecture in organisation. Slow development, unscalable, block continuous development, unreliable and inflexible are no longer challenges with microservices.
Application Programming Interface or in short API composes the interfaces of various building blocks for a developer to assemble into applications. APIs connect an organisation’s business process, services, content and data among channel partners, internal teams, and external developers as well as customers in easy and secure manner. APIs not only provides seamless communication between cloud applications by enabling integration between the platform and applications but also improve security by creating added protection layer (use of token, signature, implementation of API gateways, API management, etc).
Event Driven Architecture (EDA) is distributed asynchronous architecture pattern that can be utilised to solve distributed data challenges. With EDA, automatic respond is triggered upon an event (i.e a customer makes an order or online purchase). This key component is crucial in organisation responsive time, accuracy and most of all enhances the customers experience.
In conclusion, composable applications is considered a part of composable enterprise which mainly focuses on applying its key components in building or creating an applications that cater the needs of organisations thus giving the ability to innovate and adjust according to their business demands.
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