13.1.1 Identifying requirements

• Steps in defining a problem according to the systematic approach

  1️⃣ Define the problem statement

  2️⃣ Identify stakeholders

  3️⃣ Determine functional requirements

  4️⃣ Determine non-functional requirements

  5️⃣ Prioritize requirements

  6️⃣ Document requirements
• A well-defined problem statement clarifies exactly what needs to be solved.
• Understanding the context of the problem is the first step in defining a problem statement.
• What do non-functional requirements describe about a system?

  Performance and scalability
• The problem statement is the foundation of any successful software project.
• Match the component of a problem statement with its description:

  Context ↔️ Understanding the environment

  Functional Requirements ↔️ What the system should do

  Non-Functional Requirements ↔️ How the system should perform
• Who are considered stakeholders in the development of a software project?

  Affected individuals or groups
• Employees are key stakeholders because they will use the application to track tasks and submit timesheets.
• Management is responsible for overseeing the usage and benefits of the application.
• What is the IT department responsible for in a software project?

  Maintaining and supporting the application
• Developers are stakeholders who design and implement the application.
• All stakeholders have a vested interest in the application's success and functionality.
• Steps to identify functional requirements

  1️⃣ Review the problem statement

  2️⃣ List key functions

  3️⃣ Describe each function in detail
• What is one functional requirement of the ABC Corp mobile application?

  Employees can log tasks
• The timesheet submission feature in the ABC Corp application allows employees to submit weekly timesheets.
• What are non-functional requirements primarily concerned with?

  System performance
• The application should respond within 2 seconds for most actions as a non-functional performance requirement.
• Data encryption at rest and in transit ensures the security of employee information.
• What does scalability ensure in a software system?

  Supports thousands of users
• Non-functional requirements cover aspects such as performance, security, usability, and scalability
• The application should respond within 2 seconds for most actions.
• Match the non-functional requirement with its description:

  Performance ↔️ Response time within 2 seconds

  Security ↔️ Data encryption in transit

  Usability ↔️ Intuitive and easy navigation

  Scalability ↔️ Handle 10,000 users without degradation
• What is the purpose of a well-defined problem statement?

  Ensures shared understanding
• A problem statement includes components such as context, functional requirements, and non-functional requirements
• The problem statement for the ABC Corp app involves designing a mobile application for task tracking, timesheets, and team communication.
• Match the requirement type with its description for the ABC Corp app:

  Functional ↔️ Submit weekly timesheets

  Non-Functional ↔️ Secure employee data
• What are stakeholders in a project?

  Affected individuals or groups
• Match the stakeholder with their primary need for the ABC Corp app:

  Employees ↔️ Efficient task tracking

  Management ↔️ Oversight of employee activity

  IT Department ↔️ Data security and scalability

  Developers ↔️ Clear requirements and feedback
• Non-functional requirements specify how well a system performs its functions
• The performance requirement for the ABC Corp app is to respond to most actions within 2 seconds.
• Prioritize the following requirements using the MoSCoW method for the ABC Corp app:

  1️⃣ Track and record tasks (Must)

  2️⃣ Submit timesheets (Must)

  3️⃣ Enable team communication (Should)

  4️⃣ Secure employee data (Must)

  5️⃣ Responsive UI (Could)

  6️⃣ Scale to 10,000 users (Should)
• What is the purpose of documenting requirements in software development?

  Ensure clear understanding
• Acceptance criteria define the conditions for accepting a requirement
• The task tracking requirement for the ABC Corp app is currently in the planned phase.