By: Alaa’ Amr – Miral Hossam – Mohanad Yehia

All Copy Rights Saved to the 7th Students’ Conference on Communication and Information Based in the Faculty of Computers and Information Cairo University – Egypt 2011/2012 www.scci-cu.com

Topic Code: MIX-01-2012

Instructed on: 11-Nov-2011 | Session: #02

Agenda:

SDLC

Models:

Water Fall Model.

Spiral Model.

Agile Model.

SDLC:

Stands for Software Development Life

Cycle.

Standard model used word wide to

develop a software.

Necessary to ensure the quality of the

software.

Logical steps taken to develop a

software product.

SDLC:

1. Analysis.

2. Planning.

3. Implementation.

4. Testing.

1-Analysis:

The first and the most important phase in the SDLC.

Determine where the problem is. Breaking down the system. Requirements.

Must be done carefully.

Any error in this phase will cost a lot !!

2-Planning:

Determine who will do what !

Tasks are assigned to team members.

It all starts here.

3-Implementation:

-The most expensive phase.

Also the longest one!

4-Testing:

The never ending phase.

In this phase we TEST, TEST, TEST, and TEST.

Very important phase.

SDLC Models:

Water Fall Model

Spiral Model

Agile Model

Water Fall Model:

The waterfall model is

the oldest and most

widely used model in the

field of software

development.

Advantages & Disadvantages:

Advantages:

Linear model.

Documentation.

Testing (software

coding).

Disadvantages:

Unidirectional.

Unclear requirements

lead to confusion.

Client’s approval is in

the final stage.

Spiral Model:

Advantages & Disadvantages:

Advantages:

Large and complicated

projects.

Adaptability with

changes.

Testing at each phase.

Disadvantages:

Works on complicated

projects only.

An experienced and

skilled team are

required.

Agile Model:

Prioritize

Verification

Implementation

Design

Requirements

Key Features of Agile Software

Development:

Iterative.

Active Customer involvement.

Fixed Time.

Priority based delivery.

Key Features of Agile Software

Development (cont’d):

Adaptive.

Empowered Teams.

Rapid development.

Simplicity.

Agile working flow STORY BOARD:

Advantages & Disadvantages:

Advantages:

Customer Satisfaction.

Saves Time.

Testing.

Suitable for fixed or changing requirements.

.

Disadvantages:

Not suitable for handling

complex dependencies.

More risk of sustainability, maintainability and extensibility.

Strict delivery management dictates the scope, functionality to be delivered, and adjustments to meet the deadlines.

Summary:

SDLC

SDLC Models:

Water Fall Model.

Spiral Model.

Agile Model.