Part 4: Validating the Architecture

This final part of the book is about verifying that everything that has been thought of, designed, and implemented in the first three parts has indeed reached its objective, which is to obtain an information system in which there is very little technical debt, where business-/IT-alignment is good, and where changes of any kinds are easy to realize and do not make for complex technical modifications that harm the initial design. We will thus modify the data structure, the business rules, the security management, and even the business processes in this part, and hopefully show that all this can be handled very smoothly by the information system that has been put in place in its sample form.

This part contains only one chapter:

• Chapter 23, Applying Modifications to the System