1.1.2 Decomposing problems

Question 1

State:

The four techniques, also know as pillars, in computational thinking

Answer 1

Decomposition, Pattern Recognition, Abstraction, Algorithms

Question 2

Define:

Decomposition

Answer 2

Breaking a complex problem into smaller and more manageable seperate parts

Question 3

Fill The Blank:

When a problem is decomposed, each part can be ………., ………. and ………….. individually

Answer 3

Developed, Tested, Evaluated

Question 4

Fill The Blank:

The solutions to each individual problem/module can be much simpler and easier to ………………. than the larger overall problem

Answer 4

Understand

Question 5

State:

What problem solving approach uses decomposition?

Answer 5

Top-down

Question 6

Fill The Blank:

When decomposition is complete then each sub-problem should be at the same…

Answer 6

Level of Detail

Question 7

State:

2 advantages of decomposition

Answer 7

• Different people can work on different sub-tasks, modules, which can be integrated to make the final solution
• Maintanence of the final software solution can be completed at modular level

Question 8

Fill The Blank:

Step 1) Identify and describe the …………… and ……………. It is important in this stage that the correct ……… ……… are used relating to the ……………

Steps of Decomposition

Answer 8

Problems, Processes, Technical Terms, Industry

Question 8

State:

2 disadvantages of decomposition

Answer 8

• The sub-problems may not correctly combine to solve the initial problem
• If the initial problem is not fully understood, it can be difficult to decompose

Question 9

Fill The Blank:

Step 2) ………. down the problem into seperate ………

Steps of Decomposition

Answer 9

Break, Tasks

Question 10

Fill The Blank:

Step 3) …………. the tasks and subtasks. ……………… should be made to enable a third party to implement a solution to the problem

Steps of Decomposition

Answer 10

Describe, Documentation

Question 11

Fill The Blank:

Step 4) …………..; Most software is made with a ………. and tasks are usually divided between team members

Steps of Decomposition

Answer 11

Communicate, Team