# Loose coupling
## MicroSim spec
- **Recommended sim type:** graph / dependency
- **Microsimmability score:** 82/100
- **Layout:** drawing region (canvas) on top; control region (sliders/buttons) below.
### Parameters (tunable controls)
- `Coupling strength`
- `Components`
- `Change frequency`
### What animates
Edges thin between modules as [[Coupling|coupling]] drops; a change in one node propagates to fewer others, shrinking the blast radius.
### Learning objective
Relate change-isolation to inter-component coupling strength.
## Links (Wikipedia order)
<!-- injected from _registry/childlinks/Loose_coupling.json (2026-07-30T02:09:12Z) -->
[[Accuracy_and_precision]] · [[Adaptability]] · [[Algorithmic_efficiency]] · `Asynchronous_communication` · `Cascading_failure` · `Class_(programming)` · `Clojure` · `Cohesion_(computer_science)` · [[Computer_programming]] · `Computing` · `Continuation` · [[Correctness_(computer_science)]] · `Coupling_(computer_programming)` · `Data_consistency` · `Data_element` · `Data_model` · `Data_synchronization` · `Eiffel_(programming_language)` · `Event-driven_architecture` · [[Flexibility_(engineering)]] · `Functional_programming` · `ISO/IEC_9126` · `Interface_(computing)` · `JSON` · `Lisp_(programming_language)` · `List_of_system_quality_attributes` · [[Maintainability]] · `Message-oriented_middleware` · [[Non-functional_requirement]] · `Operating_system` · [[Orthogonality_(programming)]] · `Programming_language` · [[Reliability_engineering]] · [[Reusability]] · [[Robustness_(computer_science)]] · `Ruby_(programming_language)` · [[Scalability]] · `Separation_of_concerns` · `Service-oriented_architecture` · `Smalltalk` · `Software_component` · [[Software_portability]] · [[Software_quality]] · [[Software_quality_assurance]] · [[Software_quality_control]] · [[Software_quality_management]] · [[Software_sizing]] · [[Software_testability]] · `Systems_design` · `Unified_Modeling_Language` · [[Usability]] · [[Wayback_Machine]] · `XML`
> p5.js MicroSim stub · part of System Quality Attributes · [Wikipedia source](https://en.wikipedia.org/wiki/Loose_coupling)
> Relation: subfield of system quality attributes.
## Concept summary
Loose coupling minimizes the dependencies between components so each can change independently.
## Build checklist
- [ ] Claim it: set `status: in-progress` + `lease` + `leased_at`
- [ ] Write the child page explaining the concept (tie it back to system quality attributes)
- [ ] Finalize parameter ranges and defaults
- [ ] Implement the p5.js sketch (drawing + control regions)
- [ ] Add caption + the learning objective on the page
- [ ] Set `status: done`
## p5.js sketch
```javascript
// MicroSim: Loose coupling
let controls = {};
function setup() {
// createCanvas(...); create sliders for the parameters above.
}
function draw() {
// background(...); read controls; render graph / dependency; respond live.
}
```
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Back to System Quality Attributes · Wikipedia: [Loose coupling](https://en.wikipedia.org/wiki/Loose_coupling)
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## Semiotic profile
> *The semiotic universals this article invokes, machine-derived from the crossref — **unverified** (born so). Populated 2026-07-06 for the Systems room.*
**Universals (3):** 🟡 system (5) · 🟢 frequency (1) · 🟢 optimization (1)
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## Wikipedia : Wikitube
**Strict pair:** [Wikipedia](https://en.wikipedia.org/wiki/Loose_coupling) : [Wikitube](https://en.wikitube.io/wiki/Loose_coupling)
## Previous hub tags
Tree parent: [[Reliability_engineering]].
Legacy hubs: none.
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*Sources: 1 legacy note. Minted wave 1, 2026-07-30 (v1.6 order).*