The following are some basic popular models that are adopted by many software development firms

A. System Development Life Cycle (SDLC) Model
B. Prototyping Model
C. Rapid Application Development Model
D. Component Assembly Model

There are various SDLC maodels...
1. Waterfall Model
2. Incremental Model
3. Prototype Model
4. Spiral Model
5. Rapid Application Development Model (RAD)
6. V Model
7. XP Model

waterfall model
moderate waterfall model
prototype model
iterative model
spiral model
v-mode

sdlc models:
1.waterfall model
2.iterative model
3.incremental model
4.spiral model
5.v model
6.rapid application development model
7.xp model
8.agile model
9.rational unified process model
10.prototype model

waterfall model
incremental model
spiral model
win win spiral model
iterative model
rapid application development model
V Model
prototype model

water fall model
v model model
prototype model
agile model
spiral model
rapid application development model
iterative model
incremental model

waterfall model
Agile model
V model
Incremental model
prototype model
spiral model
win win spiral model
Rapid application development model
XP model
Iterative model
Rational unified process model

sdlc models
1.water fall model
2.spiral model
3.incremental (or) iterative model
4.rapid development application model
5.v-model
6.Agile model
7.prototype model

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