SDLC Phases, Feasibility, and Development Methodologies Overview questions and answers + rationales for student success

SDLC

System Development Life Cycle

SDLC Phase 1

Planning

SDLC Phase 2

Requirements- Gathering and Analysis

SLDC Phase 3

Design

SDLC Phase 4

Implementation

SDLC Phase 5

Maintenance

Feasibility study

Measures benefits IS will add to the organization

Dimensions of Feasibility

TELOS

Feasibility 1

Technical- do we have the technology

Feasibility 2

Economic- costs and benefits

Feasibility 3

Legal- any legal issues

Feasibility 4

Operational- will it work

Feasibility 5

Scheduling- when will it be completed

Implementation Alternatives

insourcing, self-sourcing, outsourcing

Insourcing Alternative

Internal IT team

Self-Sourcing Alternative

End Users (non-IS staff)

Outsourcing Alternative

Hiring external vendors or consultants

Agile Methodology

A collection of development approaches (like XP) that promote a more adaptive project management process

Extreme Programming (XP)

A method for developing software by dividing the project into smaller functions