![]() This means how soon after a state change in a given module, the rest of the modules concerned will take this change into account. The last criterion is the length of time between when one module decides to share some data and other modules have that data. However, others are more complicated, require more commitment, knowledge, and discipline. Some integration methods are simple - require little work, are easy to understand and use. The second criterion for evaluating the Integration Style is its level of complexity. Therefore, it will be easy to guess that coupling is one of the more important criteria in terms of integration style. If you’ve read the previous posts in the series, you already know that one of the most important attributes of modular design is independence. CouplingĬoupling is a measure of the degree to which 2 modules are dependent on each other ( wiki):Ĭoupling is the degree of interdependence between software modules a measure of how closely connected two routines or modules are the strength of the relationships between modules. We can distinguish the following criteria: Coupling, Complexity, Data Timeliness. Then, based on that criteria, we will decide on the method of integration in the future. Therefore, we must define criteria on the basis of which we will compare all styles. Like everything in nature, each Integration Style has its pros and cons. In any case, everyone interested in the topic of integration, I invite you to read the book or materials that are available online at site. This article takes some knowledge from this chapter and relates it to the monolithic and modular architecture. ![]() This book is considered a bible of information about systems integration and messaging. ![]() It sounds exactly like Chapter 2 of Gregor Hohpe and Bobby Wolf great book Enterprise Integration Patterns. The title of this post is not accidental. In this post, I would just like to discuss the missing part - Integration Styles for modules in Modular Monolith architecture. In previous articles in this series, we discussed the attributes of these elements which are, in our terminology, called modules. … process of linking together different computing systems and software applications physically or functionally, to act as a coordinated whole.Īs you can see from the definitions above, in order to provide a system that fulfills its purpose, we must integrate elements to form a whole. The concept of systems integration is defined as follows ( wiki): If you look at that definition closely for a minute, you can see that a system must consist of three kinds of things: elements, interconnections, and a function or purpose. Meadows defines the system concept in general:Ī system is an interconnected set of elements that is coherently organized in a way that achieves something. Let me write here a quote from the book “Thinking in Systems: A Primer”, where Donella H. In order to deliver business value, individual elements must somehow integrate with each other. No module or application in a larger system works in 100% isolation.
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