Software can be shipped by deadlines. In that case, it has some value that does not grow over time. To make the app great, it must be continuously upgraded. This is what true Agile is about.
"The Definition of Done" is a complex problem for many software development companies. How do you know when there are enough features? Is it worth the time to implement a functionality nobody might ever use? How do you know if we develop a thing the end users will adore? Do we stop at MVP or should we continue to work on the product?
