Software Development Process Models

SDLC

Software Development Life Cycle

What are the 7 phases of SDLC?

1. Identifying problems, opportunities, and objectives
2. Determining human information requirements
3. Analyzing system needs
4. Designing the recommended system
5. Developing and documenting software
6. Testing and maintaining the system
7. Implementing and evaluating the system

List the sequential/prescriptive process models

Waterfall Model
V

List the Evolutionary/Iterative/Incremental Process Models

Spiral Model, Prototyping, Incremental Model, Iterative and Incremental Model

It describes how the framework activities and the actions and tasks that occur within each framework activity are organized with respect to sequence and time

process flow

Other term for Waterfall Model

linear-sequential life cycle model
classic life cycle

List the systems where the waterfall model is appropriate

embedded systems, critical systems, large software systems

The 5 phases of SDLC

Communication
Planning
Modeling
Constrcution
Deployment

This process flow executes each of the five framework activities in sequence, beginning with communication and culminating with deployment

Linear process flow

This process flow repeats one or more of the activities before proceedung to the next

Iterative process flow

This process flow executes the activities in a "circular" manner

Evolutionary process flow

This process flow executes one or more activities in parallel with other activities

Parallel process flow

This process model combines elements of linear and parallel process flows.

Incremental process flow

This system is where the software has to interface with hardware systems

embedded systems

This system is where there is a need for extensive safety and security analysis of the software specification and design

Critical Systems

This system are part of broader engineering systems developed by several partner companies

Large software systems

This model is designed where the basic problem requirements are refined into progressively ore detailed and technical representations of the problem and its solution

V-model

In this process flow model, a software project repeatedly passes through phases of iterations

Spiral model

What is the term of the phases nin iteration in spiral model?

Spirals

This process flow model is bulding software application prototypes which displays the functionality of the product under development, but may not actually hold the exact logic of the original software

Prototyping

This type of prototying uses very little refforts with minimum requirement anallysis to build a prototype

Throaway Prototyping

This type of prototyping is based on building actual functional prototypes with minimal functionality in the beginning. It develops the heart of the future prototypes on top of which the entire system is built

Evolutionary Prototyping

This type of prototyping is used in web development domain. This process is used to draw attention to the second phase of the process, where a fully functional UI is developed with very little regard to the actual services

Extreme prototyping

In this process flow model, specification, development, validation activities interleaves rather than separate, with rapid feedback across activities

Incremental Model

This process flow model develop a system through repeated cycles(iterative) and in smaller portions at a time(incremental)