Model Software

Today, I had to stop myself writing “solving the problem” about developing software. Why do we say that? Why do software people call any bounded area of reality “the problem domain”?

My change of mind has been fermenting for a while, due to modelling business processes, learning about incremental, agile software development and more recently writing and learning functional programming. In the shower this morning, I finally concluded that I think software is primarily a modelling medium. We solve problems using the models we build.

Wanting to create another first-person shooter game or to model the fluids in a thermo-nuclear reactor are challenges, not problems. We build models of systems we have defined and the systems don’t even have to be real. I read a couple of days ago that a famous modern philosopher said our world is made of both reality and our ideas. Assuming the computer hardware is real, the software can model either reality or our imagination; our chosen narrative.

‘Digital’ gets everyone working with software models instead of reality. Once everyone lives inside the shared model, when does it become our reality?

Or when did it?

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