This document introduces the software development life cycle (SDLC), including its key components and types of models. The SDLC is a systematic process for building quality software that typically includes requirements analysis, design, implementation, testing, and maintenance phases. Component details include requirements gathering, design documentation, coding, and testing approaches. Model types discussed are traditional waterfall, iterative/incremental, and adaptive agile models such as Scrum. The document concludes with a question and answer session.

1. By Subodh Kumar ,PMP
https://www.linkedin.com/in/subodhkumarpmp/
http://subkum71.wix.com/subodh
Introducing
Software Development Life
Cycle(SDLC) –Current Practices

2.  What is Software Development Life Cycle(SDLC)
 Various Components of SDLC
 Type of Software Development Life Cycle
 Traditional -Water Fall Model
 Iterative and Incremental Model
 Adaptive Model-Agile/Scrum/Dev ops
 Q & A
Agenda

3. What is Software Development Cycle(SDLC)
Systematic Process of Building Quality Software which includes
following distinct phases
Requirement Analysis (15%)
Design (30%)
Implementation(Coding) (20%)
Testing (30%)
Release (5%)
Maintenance

4. SDLC Components -Requirements
What ?
Needs of Various Stakeholders(Interested Parties in the System/Client)
Clearly define business problems needs to address by Software/Application.
Methods
 Interviews
 Workshops/Client Meetings
Output
• SOW (Statement of Work)
• Use Cases (How user is going to interact with System)
• System Requirement Specification(SRS)
• User Stories

5. SDLC Components -Design
HOW ?
Define solution for given user requirement-Model of the system(Blue Print)
Technical architects start the System Architecture/High-level design.
Low-Level Diagram
- Flow Chart
- Pseudo Code
- Program Specifications

6. Class Diagram
Component Diagram

7. Sequence Diagram
Activity Diagram

8. SDLC Components –Implementation( Coding)
Input
System Design, Program Specifications
Work
System is first developed in small programs called Units.
Unit test done by developer.

9. SDLC Components –Testing
Process to evaluate the software against the specified requirement.
To make Insure product is defect free(Error Free).
Input
• Developed Program (Code)
• Test Case
Approaches
White Box Testing
EX:
-Unit Test
- Integration Testing
Black Box Testing
EX:
-User Acceptance

10. SDLC Components –Maintenance
Input
Running the System
Work
- Under Operation
- Enhancement in the System
- Bug fixing (if any)

11. SDLC Classification
SDLC Predictive(Plan Driven)
Ex-Water Fall Model
Interactive and Incremental
Adaptive(Agile)
Ex SCRUM

12. Traditional-Water Fall Model

13. Iterative and Incremental

14. Adaptive-Agile

15. Adaptive-SCRUM

16. DevOps
• Real Time Communication (Development & IT Operation)
• TDD –Test Driven Development
• CD-Continuous Integration

17. ?
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Question and Answer Session