In this episode of Beneficial Intelligence, I discuss how the different layers in your IT architecture decays at different rates. The data layer changes slowly with a half-life of around a decade. The business logic changes every few years, and the user interface changes very rapidly.
This has implications for the architecture of your systems, and you should ask your architects about the expected speed of decay of each layer in your systems. If you know the speed of decay, and when the application was written or last revised, you can better anticipate what your business is going to ask of you.
I'd love to hear your comments. Please email me at sten@vesterli.com