Introduction to CASE Tools

What is the term used to define Computer aided Software Engineering (CASE)?

Answer explanation

The term used to define Computer Aided Software Engineering (CASE) is 'CASE tools'. These are software applications that assist in software development and project management, enhancing productivity and quality.

What are the popular categories of CASE tools?

Answer explanation

Popular categories of CASE tools include Upper CASE tools for design and modeling, Lower CASE tools for implementation and testing, and Integrated CASE tools that combine both functionalities for software development.

What are the benefits of using I-CASE tools for System Development?

Answer explanation

I-CASE tools enhance system development by improving productivity, ensuring better quality through automated testing, facilitating collaboration among team members, and providing comprehensive documentation, which streamlines the development process.

What are the differences between Classic CASE tools and Real CASE tools?

Answer explanation

Classic CASE tools focus on documentation and design, while Real CASE tools integrate automated support for software development processes, enhancing productivity and collaboration.

What is the role of a Central Repository in Real CASE tools?

Answer explanation

The Central Repository in Real CASE tools serves as a centralized storage for project artifacts, enabling efficient management, version control, and collaboration among team members, ensuring consistency and accessibility of data.

What is the significance of round-trip engineering in modern CASE tools?

Answer explanation

Round-trip engineering in modern CASE tools allows for seamless synchronization between design and code. It enhances productivity by enabling developers to update models and automatically reflect changes in the code, ensuring consistency.

What were the systems analysts using before the introduction of CASE tools?

Answer explanation

Before the introduction of CASE tools, systems analysts primarily used manual methods such as flowcharts, data flow diagrams, and documentation to design and analyze systems, which were time-consuming and prone to errors.

What were the modeling notations introduced before graphics editors?

Answer explanation

Before graphics editors, modeling notations like UML (Unified Modeling Language) and ER (Entity-Relationship) diagrams were introduced. These notations provided a standardized way to represent system designs and data relationships.

What was popularized by Peter Chen in 1976?

• Entity-Relationship model

• Data Flow Diagram

• Structured Analysis

• Object-Oriented Analysis

Answer explanation

The Entity-Relationship model, popularized by Peter Chen in 1976, is a foundational concept in database design that visually represents data and its relationships, distinguishing it from other methodologies like Data Flow Diagrams.

What are some of the notations introduced for ERDs?

• Chen's notation

• Gane and Sarson

• Yourdan

• All of the above

Answer explanation

Chen's notation, Gane and Sarson, and Yourdan are all recognized notations for Entity-Relationship Diagrams (ERDs). Therefore, the correct answer is 'All of the above' as they all contribute to ERD representation.