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OCR A-Level Computer Science
3.1 Programming project
3.1.2 Design of the solution
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What are project requirements in computer science?
Detailed specifications of program
Understanding project requirements helps design a solution that meets
user needs
efficiently.
True
What are the advantages of decomposing a complex problem into modules?
Modular and scalable solution
Match the data structure with its key characteristic:
Arrays ↔️ Fixed size
Lists ↔️ Flexible insertion/deletion
Dictionaries ↔️ Efficient lookup by key
Binary search is a common example of a
searching
algorithm.
What is the definition of functional requirements?
What the program must do
What is an example of improved understanding as a benefit of modular decomposition?
Analyzing user authentication separately
What is the primary benefit of maintainability in modular design?
Patching a single module without affecting others
What does independent development and testing in decomposition allow?
Develop and test each module separately
What are data structures used for in a computer program?
Organizing and storing data
What do non-functional requirements focus on in program design?
How the program performs
Each module in
decomposition
can be developed and tested independently.
True
What is a key characteristic of arrays as a data structure?
Fixed size
What is the primary purpose of sorting algorithms?
Arrange data in order
Steps in the process of decomposition:
1️⃣ Break down the complex problem
2️⃣ Focus on individual components
3️⃣ Develop and test each module
4️⃣ Reuse modules in the program
5️⃣ Maintain and update as needed
Why is decomposition beneficial for software development?
Creates modular and scalable solutions
Reusing a date validation function is an example of reusability in
modular design
.
True
Improved understanding is a key benefit of
decomposition
.
True
Why is maintainability important in modular design?
Easier to update and fix individual modules
What are arrays characterized by in terms of data access?
Fixed size, sequential access
Arrays have a fixed size and allow
sequential
access.
True
What are algorithms used for in computer programs?
Solving problems step-by-step
Dynamic programming is an example of an
optimization
algorithm.
Consistency in UI design maintains a unified look, feel, and
behavior
Functional requirements describe what the program
must
do.
Decomposition allows developers to understand the problem better by focusing on individual
components
.
Data structures are designed to support a program's functional and non-functional
requirements
.
Choosing the right data structures is essential for scalability and maintainability of a
program
.
True
Time complexity is a key factor to consider when choosing an
algorithm
.
True
What is the primary focus of non-functional requirements?
Performance, security, usability
Independent development of modules allows parallel development of the UI and
backend
Decomposition involves breaking down a complex problem into smaller, manageable
modules
Reusing a date validation function is an example of
reusability
Data structures support a program's functional and non-functional
requirements
What is a key characteristic of trees in data structures?
Efficient searching and sorting
Choosing the right data structures is essential for performance, scalability, and
maintainability
What is the purpose of searching algorithms?
Find specific data
What does simplicity in UI design ensure?
Keep the interface clean and uncluttered
What does accessibility in UI design consider?
Users with diverse abilities and needs
Prototyping and iterative design are essential for creating a user-friendly UI.
True
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