---
id: waterfall
requestedLanguage: en
descriptionLanguage: en
---

# Waterfall Model

- Type: lifecycle model
- Group: Lifecycle models
- Placement: Lifecycle models
- [Source](<https://ieeecs-media.computer.org/media/education/swebok/swebok-v4.pdf>)

[HTML](https://dpm.cnonim.name/practices/waterfall/)

Work is organized mainly into sequential phases, with results agreed on before moving to the next phase.

## Relationships

- uses a related phase structure to: [V-model](/practices/vmodel/en.md) (comparison)
- uses sequential phases, unlike: [Iterative Development](/practices/iterative/en.md) (comparison)
- may align the design through: [Design Review / Request for Comments](/practices/designreview/en.md) (support)

[Show on the map](https://dpm.cnonim.name/#practice=waterfall&lang=en)