Thinking about Designing Platforms

We are all designing complex digital platforms, in a harsh environment, with a large number of stakeholders and contributors. How are the tools that we have evolving to meet our needs?

Do your tools change as your project evolves or are you stuck with the same customer journey map through out the project?

I think also designing a digital product has become more like creating a digital platform. Your platform has to be built so that it is easy to extend and adapt.