The development of applications is becoming the assembly of several isolated items (front, back, databases, etc.). But for those parts to work together, and do so consistently and efficiently, it is necessary to apply patterns, define interfaces and automate processes. Architecture gives us the selection of the most appropriate solution, always in terms of the complete solution and not a specific technology, and optimising costs and performance. 

Moreover, organisations face the challenge of developing many applications, all of them completely isolated from each other. Owing to a good definition of business architecture, we can detect synergies, create reusable components that streamline development, industrialise processes that should be common among applications and, most importantly, establish a line of technological evolution for the company in the short, medium and long terms.