Kiss coding principles11/4/2023 In Python lots of the above mentioned concerns can be implemented with decorators IOSP – Integration Operation Segregation Principle This lead to the development of Aspect oriented programming. Remembering the last choices of a user (Persistence).Granting access to specific features only to a distinct group of users (Authorization).Putting log output to the console or a file (Logging).Software specific principles SOC – Separation of concernsĬoncerns are things a piece of software shall to do besides the mere customer feature: When it just discards your changes you would be not amused aka pissed. Software should behave the same way and not surprise you!įor example when you close a program you would expect that the programs warns you of any unsaved changes with a dialogue. You would be very surprised if instead of the light the dishwasher starts doing its thing. …that the light turns on, when it was off before and the other way around. When you come into a room and hit the light switch you would expect… The urge to implement a color chooser widget when the customer just wants a green button. While with KISS the solution shall be as simple as possible, YAGNI asks the question if a solution is needed at all. This is a fun one! From junior dev to principal engineer: everyone can become the victim of over-engineering or scope creep Simplicity should be a design goal: do you need a class when a function is sufficient (compare Pythons unittest with pytest) YAGNI(Y) – You ain’t gonna need it (yet) This principle was coined by Clarence Johnson who was an aeronautical engineer. You can of course cut yourself some slack by applying the rule of three from TDD: when you repeated a block of code three times look for a more generic approach. It is Tip #15 from the pragmatic programmerĮvery piece of knowledge must have a single, unambiguous, authoritative representation within a system.Ī violation of the DRY principle often comes from copy-pasting code instead of generalizing. It is the most basic but yet often the hardest to implement. But in programming I really try to stick to this principle. Unfortunately as a parent I cannot avoid to repeat myself. You can use them in everyday life as well. These can be applied not only to software development. If there is a good justifiable reason to not apply the principle then don’t. Principles work as guiding lights but you should not see them as absolute laws. If you take the last pasta sauce from the pantry, put it on the shopping list.FCOI – Favor Composition over InheritanceĮvery time you come to a fork in the road a principle can help you.Object Oriented Software specific principles.IOSP – Integration Operation Segregation Principle.YAGNI(Y) – You ain’t gonna need it (yet).
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