Agile Methodology and Microservices, key elements in digital transformation

Enterprise web application development is constantly evolving, the latest stream is the development of web applications under microservices-based architectures. This is to give the architecture a single application, a development approach as if it were partizing into a set of small services, each running in its own process and communicating with each other with lightweight mechanisms. Assigning microservices to different teams empowers the team to choose the technologies to work with and be responsible from start to finish for their microservice.

In this sense, Vector ITC Group recommends applying the Agile methodology to this new software architecture. Broadly speaking, a company with Agile methodologies and microservices architecture, is a company that can be quickly integrated into the external constraints of the market and thus achieve a greater ROI.

Agile technology plays a strategic role in microservices. “The microservices architecture offers great versatility in keeping services identified and package, making it easy for the business core not to rely on technology from data sources and providers. The Agile methodology is a great ally for the speed and efficiency it provides to respond to the time to market and to obtain the best return on investment by opportunity cost”, says Ricardo Trejo Agile Expert Consultant at Vector ITC Group.

How important is it for digital transformation?

Vector ITC Group identifies a key piece of service-oriented architecture called Enterprise Service Bus (ESB). An ESB seeks, among other things, to decouple the customer core from the service provider, to get

  • Have localized all external services that use microservices on a single system. This allows a control in the monitoring of the services consumed by our business.
  • Develop microservices that are not technologically dependent on suppliers. Because these are standardized messages such as SOAP or RESTFul, it also supports jms and ftp. This type of technological or contract coupling is made from the ESB.
  • The business core does not depend on the format of the data provided by the provider. This translation would be done from the OSB and so the business core would always have the same format.
    Add or remove service providers, thanks to multiplexing, without affecting the business core. This concept is very useful in travel agency, risk engines or simply suppliers of raw materials.
  • Abstracting the business core from the databases allows us to have different types of SQL and NoSql, their drivers are in the ESB and the core will always get the same format regardless of the source. This is applicable at the Big Data, Cache Services, or Sensorica level.
  • Services-oriented projects with Agile have a well-structured architecture, facilitating the creation of new equipment needed to develop or modify the microservice. The API developer will know that the data will always come from the same source and in a standardized format. The ESB administrator knows the data source, providers, and can test their connections without the need for client API development.

Inconvenient not to apply the Agile methodology

Without this methodology, the dilemma of how many developers would be needed to build the service with the same technology but with different communication protocols between service providers would remain present. In addition, there would hardly be good control of the libraries installed on each server and that would generate duplicate elements as always. If you wanted to add or remove a service provider, you would have to recompile those classes by putting the business core at risk.