What is the difference between user requirements and system requirements? Can you provide an example of each?

  

PFA for the Document
Select one assignment from the following list:
1. Compare and contrast user requirements versus system requirements, and provide an example of
each.
2. Compare and contrast functional versus non-functional system requirements, and provide an
example of each.
3. Discuss the requirements elicitation process and associated challenges. Explain two or more
possible elicitation techniques.
Your analysis should be at least 150 words.
Use a reference as a source for your work products, you must use the APA in-text citation format
to credit the author.

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The success of any project mainly relies on the requirements gathered at the initial phase of the software development life cycle. Understanding user requirements versus system requirements and functional versus non-functional system requirements are crucial to mitigate risks, reduce errors, and enhance the software’s usability. Therefore, this paper aims to compare and contrast the user and system requirements and functional and non-functional system requirements.

Description:

User requirements are detailed specifications of what a user needs or requires from the software system to be functional. In contrast, system requirements describe how the system behaves and operates in different situations, environments, and scenarios. An example of user requirements is a customer needing a website to purchase a product. The website must have specific features, such as user-friendly interface, search functionality, and payment gateway, to cater to the customer’s requirements.

On the other hand, functional system requirements describe what the system should do and how it should react to inputs and outputs. For example, the website should show the product details, pricing, and availability. Non-functional system requirements define how well the system performs without addressing specific functionalities. An example of a non-functional requirement is the website’s response time, which should be within 2 seconds.

The requirements elicitation process is crucial in gathering the correct and complete requirements for a software project. Some challenges associated with the process include incomplete requirements, ambiguous requirements, and the difficulty of understanding the user’s needs. Possible elicitation techniques to overcome these challenges are interviews, surveys, and observation. Interviews and surveys help in understanding the user’s requirements, while observation helps in identifying specific user behaviors and their usage patterns. Overall, the correct gathering of requirements helps to develop a successful software product, meeting the user’s needs.

Objectives:
1. To understand the fundamental differences between user requirements and system requirements.
2. To comprehend the key distinctions between functional and non-functional system requirements.
3. To learn about the requirements elicitation process and its associated challenges.
4. To explore two or more possible elicitation techniques used to obtain requirements.

Learning Outcomes:
Upon completion of the assignment, learners will be able to:
1. Identify and differentiate between user requirements and system requirements, using relevant examples.
2. Compare and contrast functional and non-functional system requirements, using relevant examples.
3. Describe the requirements elicitation process and identify the various challenges associated with it.
4. Analyze and evaluate two or more possible elicitation techniques and explain their applicability in different scenarios.

Heading 1: Comparison of User Requirements vs. System Requirements
Objective 1 and Learning Outcome 1 would come under this heading. The content should include a definition of user requirements and system requirements, highlighting the differences between the two with examples. An appropriate reference should be used and cited in APA in-text citation format.

Heading 2: Comparison of Functional vs. Non-functional System Requirements
Objective 2 and Learning Outcome 2 would come under this heading. The content should include a definition of functional and non-functional system requirements, highlighting the differences between the two with examples. An appropriate reference should be used and cited in APA in-text citation format.

Heading 3: Requirements Elicitation Process and Challenges
Objective 3 and Learning Outcome 3 would come under this heading. The content should discuss the requirements elicitation process, its importance, and the challenges associated with it. An appropriate reference should be used and cited in APA in-text citation format.

Heading 4: Elicitation Techniques
Objective 4 and Learning Outcome 4 would come under this heading. The content should describe two or more possible elicitation techniques used to obtain requirements, along with their advantages and disadvantages. An appropriate reference should be used and cited in APA in-text citation format.

Solution 1: Compare and Contrast User Requirements versus System Requirements

User requirements are the needs and wants of the end-users of the system. They are usually expressed in non-technical terms and define the functionality that the system should provide for the users. User requirements are developed through a process of eliciting, analyzing and specifying the needs of the end-users. An example of a user requirement is that a website must be easy to navigate and provide quick access to the necessary information.

On the other hand, system requirements are technical in nature and define the specifications and features of the system. They describe the behavior, functions, and performance characteristics of the system and are used as a basis for designing and developing the system. An example of a system requirement is that a website must have a response time of less than 3 seconds.

Both user requirements and system requirements are essential for the success of the system. User requirements ensure that the system meets the needs of the end-users, while system requirements ensure that the system functions as intended and meets the technical specifications. In summary, user requirements are focused on the user experience, while system requirements are focused on the technical capabilities of the system.

Solution 2: Compare and Contrast Functional versus Non-Functional System Requirements

Functional system requirements describe what the system should do or the functions it should perform. They define the tasks that the system is expected to perform and are usually expressed in terms of use cases or scenarios. An example of a functional requirement is that a website must allow users to create a new account.

On the other hand, non-functional system requirements describe how the system should perform. These requirements are not related to the specific functionalities of the system but rather describe the overall behavior, performance, and usability of the system. An example of a non-functional requirement is that a website must be responsive and provide a seamless user experience.

Both functional and non-functional requirements are equally important for the system’s success. Functional requirements ensure that the system performs the necessary tasks, while non-functional requirements ensure that the system performs those tasks effectively and efficiently. In summary, functional requirements are focused on what the system does, while non-functional requirements are focused on how the system does it.

Reference: Kotonya, G., & Sommerville, I. Requirements engineering: processes and techniques. John Wiley & Sons, 2014.

Suggested Resources/Books:

1. “Software Requirements” by Karl Wiegers and Joy Beatty
2. “Requirements Engineering: From System Goals to UML Models to Software Specifications” by Axel van Lamsweerde
3. “Effective Requirements Practices” by Ralph R. Young
4. “Mastering the Requirements Process” by Suzanne Robertson and James Robertson

Similar Asked Questions:

1. What is the difference between user requirements and system requirements?
2. What are functional and non-functional requirements in software engineering?
3. What are the techniques used in requirements elicitation?
4. What are the challenges faced during requirements elicitation?
5. How important is requirements elicitation in the software development process?

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