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Sample of Computer Science Homework Help Illustrations and Solutions:
Illustration 1. List the task regions in the Spiral model.
Ans. Task regions in the Spiral model are:
Customer Communication: In this region it is suggested to establish customer
communication.
Planning: All planning activities are carried out in order to define resources
timeline and other project related activities.
Risk analysis: The tasks required to calculate technical and management risks.
Engineering: In this the task region, tasks required to build one or more
representations of applications are carried out.

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Construct and Release: All the necessary tasks required to construct, test,
install the applications are conducted.
Customer Evaluation: Customer’s feedback is obtained and based on the
customer evaluation required tasks are performed and implemented at
installation stage.
Illustration 2. Explain water fall model in detail.
Ans. The project is divided into sequence of well defined phases. One phase is
completed before next starts. There is a feedback loop between adjacent phases. What
the actual phases are depends on the project.
Advantages:
Simplicity
Lining up resources with appropriate skills is easy
Disadvantages:
Highly impractical for most projects
Phases are tightly coupled.

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Illustration 3. Explain RAD model in detail
Ans. The customer and developer agree on breaking the product into small units.
Development is carried out using modelling tools and CASE tools. Customer is kept in
touch so the changes are reflected time. Quality assurance is imposed.
Advantages :
Responsiveness to change
Ability to capture user requirements effectively
Application turnaround time is shorter.
Disadvantages:
Need for modeling tools which adds expense.
Places restriction on type and structure
Illustration 4. What are the characteristics of SRS?
Ans. The characteristic of SRS consists of:
Correct. The SRS should be made up to date when appropriate requirements are
identified.
Unambiguous: When the requirements are correctly understood then only it is
possible to write unambiguous software.
Complete : To make SRS complete, its hold be specified what a software
designer wants to create software
Consistent : It should be consistent with reference to the functionalities
identified.
Specific: The requirements should be mentioned specifically.
Traceable: What is the need for mentioned requirement? This should be
correctly identified.

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Illustration 5. What are the dimensions of requirements gathering?
Ans. The dimensions of requirements gathering are:
Responsibilities: Commitments on their side Requirements form the basis for
the success of further activities in a project.
Current system requirements
Functionality requirements
Performance requirements
Availability needs
Security
Environmental definitions
Targets
Acceptance criteria
Ongoing needs: Documentation
Training
Ongoing support.