Requirements determination and Modeling Information Systems

What is the primary purpose of creating models in information systems development?

• To increase the cost of development

• To eliminate the need for documentation

• To represent critical features of a system

• To confuse stakeholders

Which of the following is NOT a benefit of using models in system analysis?

• Verify understanding of user requirements

• Ensure technical aspects are addressed early

• Investigate system requirements with low cost

• Focus on key system features

What does data modeling primarily focus on?

• Understanding user behavior

• Implementing software solutions

• Designing user interfaces

• Analyzing data requirements

Who first advocated the entity-relationship principle?

• Yourdon

• Martin

• Chen

• Bachman

What is the main technique used for process modeling?

• Entity-Relationship Diagrams

• Flowcharts

• Data Flow Diagrams

• Unified Modeling Language

What is a key characteristic of Data Flow Diagrams (DFD)?

• They do not allow for abstraction

• They are used exclusively for database design

• They can show complex activities clearly

• They are only textual representations

What does behavioral modeling help to identify?

• Triggers that cause data changes

• Static data structures

• User interface designs

• Hardware requirements

Why is it important to consider dynamic properties in information systems?

• To create static models

• To simplify the design process

• To reflect real-world changes over time

• To reduce the need for documentation

What is a significant reason for developing modern information systems?

• To provide outdated information

• To aid in decision-making with real-time data

• To minimize user interaction

• To focus solely on data storage

What does a static model fail to represent?

• System functionalities

• User requirements

• Real-world events and changes

• Data relationships