FORMAL METHODS: JUST GOOD ENGINEERING PRACTICE?

Summary from the TLDR Web Dev newsletter

Formal methods are techniques used to model complex systems as mathematical entities. While initially perceived as costly, they can actually save time and money by reducing rework and helping with early interface changes in large-scale, distributed, or low-level systems. Unlike agile development, which is better suited for projects with evolving requirements, formal design is best when requirements are well-understood.