What is meant by monolithic application

This is what microservices are all about

Microservices is a term from information technology. What is meant is an architecture pattern in which very complex application software is carried out from independent processes. These interact with language-independent programming interfaces.

The services are extremely small and operate largely decoupled from each other by performing small tasks. As a result, they enable a modular structure of all application software.

The microservices are almost only used for large applications. This architecture makes little sense for smaller applications, because here the effort for the implementation of microservices is in no healthy proportion to the actual project size.

Microservice - that is a concept and a kind of structural specification with the aim of designing large and complex applications. The applications are composed of smaller, ideally independent processes, which in turn are independent applications. The assembly is called composition in this case. The application is broken down into small independent parts, which are then referred to as a microservice.

The monolithic architecture is the counterpart to microservices. This only consists of a single process, which is why most applications have been designed according to this principle to date. The monolithic architecture is therefore more the norm.

Advantages and disadvantages

An important prerequisite for the development and emergence of microservices is the expansion of communication between software and system developers. This includes extensive automation of the processes and a clear definition of the services to be created. It is important to implement agile concepts throughout the company, which is a major challenge.

If the introduction works, there are a lot of advantages and opportunities of microservices. However, there are also some downsides. The main advantages and disadvantages are shown and compared below.

The main advantages of the implementation are a very short time-to-market and cycle time. There is very good maintainability, thanks to interchangeable tools and tools. In addition, it shows a very resilient behavior and a future-proof operation. Many minor problems and wrong decisions are eliminated. In addition, there is a faster reaction time and, in the long term, considerable cost savings.

These are attractive advantages that promise particularly good opportunities for IT companies and larger corporations. It is positive that the crash of a microservice does not paralyze the entire process. This means that the remaining applications are still available and continue to work reliably.

In addition, microservices can be introduced in any language. Ultimately, they are small, stand-alone applications that can communicate and interact with the interfaces of other microservices.

This also allows new developers and programmers to familiarize themselves more quickly.

However, in addition to all these advantages and opportunities, as is so often the case, there are also some disadvantages that should be mentioned. This is how distributed systems and applications are developed. One problem is that the development of distributed systems can be very complex. If the processes normally carried out in one operation are now divided into independent microservices, this increases the demands on communication. An example of such a process divided into microservices are the authentication and payment service processes for a payment process. For example, when an application becomes unavailable over a network, delays occur. Such latency can also become a problem.

In general, distributed databases and the corresponding transaction management can be disadvantageous.

In addition, testing applications based on microservices is extremely complex. Each individual service must be started up and verified independently in order for the process to work. With a large number of microservices, this process can quickly become exhausting and lengthy if the services do not interlock.

However, these disadvantages can be marginalized with appropriate tools and good automation.

Conclusion and outlook

It has now become clear what microservices are and for which projects and applications the architecture is suitable. The advantages and disadvantages of the concept were also presented. Finally, there is a brief conclusion and an outlook.

The flexible software architecture has long been implemented at the large corporations and brands Twitter, Netflix and Zalando.

With the versatile services, standard systems can be expanded, the CMS system can be connected to the e-commerce system and accumulated software legacy can also be reduced.

Above all, it is successful companies that use microservices to exhaust their own competitive advantages. The microservices can break up existing monolithic applications and accelerate the time-to-market. This allows individual features to be adapted more quickly and in a targeted manner to new market requirements. Micro services are small, flexible modules and have clear tasks and connections to one another. They also each have their own life cycle, are independent of the standard software and are the property of the operators of the online shops. There are three areas in which microservices can be used to boost e-commerce: (1) the expansion of standard systems to introduce independent features, (2) the development of large, individual e-commerce systems based on a microservice architecture and (3) the removal of legacy software and the subdivision of individual areas into microservices.