[StopDisinfo910]

You are mistaking technical issues and organisational issues.

Projects are driven by business requirements and values not a desire to share more or rationalise. Segregation is more often a matter of governance and processes.

That's not things you will solve using a bunch of developers. This discussion makes me realise that most of the people commenting on HN probably work for software companies and have very little experience of how big projects, be them IT or organisational, are conducted in traditional companies and what are the challenges they face.

[lou1306]

Well of course going towards integration vs segregation is an organizational (in this case, political) decision. I was saying that the average EU state machinery has a lot of room for integration, should there be a political intention to go that way.

Case in point: in Italy, different towns used to have different systems for their resident registrations. I doubt there was an extreme need for customization in this context, it was just that bigger/wealthier towns had a chance to digitize earlier and so on, leading to extreme fragmentation. Moving to a nationwide register took literally a dozen years or so, for a single service of a single country.