Software Development Methodologies

Software Development“It’s the process of developing software products in an ordered manner, usually following a certain methodology.”

programming + testing + documenting + bug fixing

Waterfall Model&

Agile

Waterfall Model- Traditional Software Development Life Cycle- Cookbook Style- Reflective of Manufacturing Processes- Rigid timeline

P A D I M

Planning

Analysis

Design

Implementation

Maintenance

- Identifying the Problem- Requirements gathering- Record and Observe- Propose solutions- Identify objectives- Creation of Project Plan

Planning

- Hypothesis Formulation- Analysis of gathered data- Impact analysis

- Internal impact analysis- External impact analysis

Analysis

- Designing the Study- Identification of features- Business rules- Diagrams and Layouts

- Entity Relationship Diagrams- Process Maps- Pseudocode

Design

- Actual Development- Coding- Integration and Testing- Bug Fixing- Alpha and Beta Releases

Implementation$ ruby> require ::File.expand_path('../config/environment', __FILE__)run Rails.application

//= require turbolinks//= require_tree .

require 'rails/all'…..…..

- Support and Continuity- Evolution of software

- Updates- Performance evaluation

- Validation

Maintenance

Planning

Analysis

Design

Implementation

Maintenance

Agile- Incremental and iterative development- Flexible with changes- Customer centric- Blurs lines between development phases- Value-driven

Sprints- a Sprint is a work cycle of agile- 1-2 weeks long- iterative- each sprint produces workable product

Sprints- sprints are done per feature- customer/client is heavily involved- quality assessment at the end per sprint

Software DevelopmentWaterfall

- Traditional Model- Sequential- Plan-driven- Focused

Agile

- Incremental- Value-driven- Customer-centric- Flexible

thank you