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OO and FP Can’t Be Friends – Yet
Henning (OO to the core) and Mike (ferociously FP) agree on all the fundamentals of software architecture, but when it comes to designing models, they can't seem to find common ground.
OO and FP folks like to congratulate themselves on how well they go together - and how OO languages are accreting one feature after another from the FP world.
Henning and Mike will highlight how OO and FP approaches to design differ, and offer possible approaches to unifying both for mutual gain and insight.
Target Audience: Architects, Developers
Prerequisites: Experience in OO or FP
Level: Advanced
Extended Abstract:
Much work remains to unify these two worlds:
- OO folks are weary of premature abstractions, whereas FP folks tend to abstract early.
- While both camps prefer operation-rich models, the approaches to designing these operations are incompatible. Specifically, the BDD and TDD approaches favored by the OO folks are incompatible with the design recipes approach preferred by the functional camp.
- Paradoxically, OO - which is supposed to be about objects - espouses BDD which is about functions, whereas FP has a rich tradition in data design, i.e. objects.
- In OO, objects populate the domain, and they are encapsulated and thus isolated, whereas in FP this encapsulation is an emergent (or not emergent) phenomenon.
- OO is inherently stateful, and FP is inherently stateless. This naturally leads to very different approaches to interface design, and more importantly, to the use of types.
Mehr Inhalte dieser Speaker? Schaut doch mal bei sigs.de vorbei: https://www.sigs.de/autor/michael.sperber; https://www.sigs.de/autor/henning.schwentner
Dr. Michael Sperber is CEO of Active Group in Tübingen, Germany. Mike specializes in functional architecture, and has been an internationally recognized expert in the field. He has authored many papers on the subject as well as several books. Mike is also an accredited iSAQB trainer, curator of its FUNAR and DSL curricula, and a member of iSAQB's Foundation working group.
More content from this speaker? Have a look at sigs.de: https://www.sigs.de/experten/michael-sperber/
Henning Schwentner loves programming in high quality. He lives this passion as coder, coach, and consultant at WPS – Workplace Solutions. There he helps teams to structure their monoliths or to build new systems from the beginning with a sustainable architecture. Microservices or self-contained systems are often the result. Henning is author of “Domain Storytelling” (Addison-Wesley, 2022), and the www.LeasingNinja.io as well as translator of “Domain-Driven Design kompakt” (dpunkt, 2017).
More content from this speaker? Have a look at sigs.de: https://www.sigs.de/experten/henning-schwentner/
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