Spiral Model

During this phase, the project team defines the scope of the project, identifies the deliverables, and sets milestones for each phase of the development process.

The team also gathers requirements and defines the resources required to

complete the project

It includes estimating the cost, schedule and resources for the iteration. It also involves understanding the system requirements for continuous communication between the system analyst and the customer

This phase also includes understanding the system requirements by continuous communication between the customer and the system analyst. At the end of the spiral, the product is deployed in the identified market.

Risk management is a critical aspect of project management that helps to ensure project success and minimize negative outcomes.

It's second stage of the model in which potential risks are identified and evaluated.

Here is an overview of risk management, it involves

• Risk identification
• Risk analysis
• Risk mitigation
• Risk monitoring
• Risk communication
• Risk documentation

• The main goal of this phase is to produce a working software prototype that meets the requirements of the project.

• This includes design, coding, and testing.

• This phase is the most time-consuming and resource-intensive phase of the project.

The Engineering Phase involves the following activities:

• Develop software based on the project plan and requirements

• Test the software to ensure it meets the quality standards

• Evaluate the software to identify areas for improvement

• Make necessary changes based on feedback and evaluation

• It involves reviewing the previous iteration, defining the objectives and requirements, planning the tasks, estimating the effort, defining the deliverables, defining the schedule, reviewing and revising the plan, and obtaining approval.

• A well-planned iteration can lead to improved quality, reduced risk, and better project outcomes.

• After each iteration, the team reviews the work done, identifies the lessons learned, and plans the next iteration. This phase is called "Plan the Next Iteration," and it is a critical part of the iterative model.

The "Plan the Next Iteration" phase involves the following steps:

1. Review the Previous Iteration

2. Define the Objectives

3. Identify the Requirements

4. Plan the Tasks

5. Estimate the Effort

6. Define the Deliverables

7. Define the Schedule

8. Review and Revise the Plan

9. Obtain Approval

A single loop spiral actually represents the Iterative Waterfall Model

The spiral model incorporates the tepwise approach of the Classical Waterfall Model

#Prototyping Model by building a prototype at the start of each phase as a risk-handling technique

#Evolutionary model – the iterations along the spiral can be considered as evolutionary levels through which the complete system is built