#Software-Engineering
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Visitor Pattern
Represent an operation to be performed on elements of an object structure without changing the classes.
Strategy Pattern
Define a family of algorithms, encapsulate each one, and make them interchangeable at runtime.
Proxy Pattern
Provide a surrogate or placeholder for another object to control access to it.
Prototype Pattern
Create new objects by cloning an existing instance.
Memento Pattern
Capture an object's internal state so it can be restored later without violating encapsulation.
Mediator Pattern
Define an object that encapsulates how a set of objects interact, promoting loose coupling.
Iterator Pattern
Access elements of a collection sequentially without exposing its underlying representation.
Facade Pattern
Provide a simplified interface to a complex subsystem.
Decorator Pattern
Attach additional responsibilities to an object dynamically, as an alternative to subclassing.
Chain of Responsibility Pattern
Pass a request along a chain of handlers until one processes it.
Adapter Pattern
Convert the interface of a class into another interface clients expect.
IC vs Management: A Longer Career Than You Think
The IC-vs-management decision feels permanent when you think in 10-year terms — but in a 30-40 year career, it's far less binary than it appears.
Multiplying Value Through Systems Thinking
Successful engineers multiply value rather than just adding it — think in terms of system effects, not just the immediate task, and the returns compound.
OTP (Open Telecom Platform)
OTP is a collection of middleware, libraries, and design principles for building applications in Erlang. The name stands for Open Telecom Platform — a branding attempt from Ericsson — but neither…
Gang of Four Design Patterns
The 23 design patterns catalogued by Gamma, Helm, Johnson and Vlissides in Design Patterns: Elements of Reusable Object-Oriented Software (1994).
Functional Programming
Functional programming is a paradigm where programs are constructed by applying and composing functions. It is declarative: function definitions are expressions that map values to other values,…
Prototype-Based Programming
In prototype-based programming there are no classes. Objects inherit directly from other objects through a prototype link.
CQRS
CQRS — Command Query Responsibility Segregation — is a pattern first described by Greg Young. At its heart is the notion that you can use a different model to update information than the model you…
Four Rules of Simple Design
Kent Beck formulated four rules of simple design while developing Extreme Programming in the late 1990s. A design is simple, in priority order, when it:
SOLID Principles
Five object-oriented design principles introduced by Robert C. Martin (2003); the acronym was coined by Michael Feathers around 2004.
Law of Demeter
"Only talk to your immediate friends; don't talk to strangers."