chapter 3 Flashcards

Question

What are coupling and cohesion?

Answer 1

Fundamental concepts in software engineering utilized to evaluate the design quality of a software system.

Answer 2

The extent of interdependence among software modules.

Answer 3

Close connections between modules, where modifications in one module can potentially impact others.

Answer 4

The internal capabilities of a module, also referred to as intra-module binding.

Answer 5

A stronger bond among the elements within a module, resulting in improved stability and dependability.

Answer 6

Data, Stamp, Control, External, Common, and Content.

Answer 7

Occurs when modules interact by passing only the necessary data as parameters, without depending on any internal data structures or external shared resources.

Answer 8

Happens when modules share a complex data structure, but only a part of it is actually needed.

Answer 9

Occurs when one module passes control information (like flags or commands) to another module, influencing its behaviour.

Answer 10

Happens when modules rely on external systems or devices for communication or data sharing.

Answer 11

Occurs when one module passes control information (like flags or commands) to another module, influencing its behaviour.

Answer 12

Happens when modules rely on external systems or devices (like shared files, databases, or hardware) for communication or data sharing. ## Footnote If the external system changes or fails, all modules using it are affected.

Answer 13

Multiple modules share access to the same global data or variables, causing hidden dependencies and unexpected side effects. ## Footnote One change in the global variable can affect multiple modules, making bugs harder to find.

Answer 14

The most tightly coupled type, where one module directly modifies or relies on the internal workings of another module, breaking modularity and making debugging very hard.

Answer 15

Functional, Sequential, Communication, Procedural, Temporal, Logical, Coincidental.

Answer 16

All parts of the function work together to perform one clear task, like calculating average. This is the highest and best form of cohesion. ## Footnote Example: def calculate_average(numbers): total = sum(numbers); return total / len(numbers)

Answer 17

Each step depends on the result of the previous one, forming a logical sequence. ## Footnote Example: def process_student_data(): data = get_student_data(); processed = clean_data(data); save_to_database(processed)

Answer 18

All tasks operate on the same data object, so they’re closely related. ## Footnote Example: def update_profile(user): update_name(user); update_email(user); update_address(user)

Answer 19

Tasks are grouped because they follow a specific control order during execution. ## Footnote Example: def user_login(): verify_user(); log_login_time(); redirect_to_dashboard()

Answer 20

These tasks occur around the same time when the app starts, grouped by when they are executed. ## Footnote Example: def app_startup(): connect_to_server(); load_settings(); show_welcome_screen()

Answer 21

One function handles several logically related tasks, but only one runs per call. ## Footnote Example: def handle_input(input_type, data): if input_type == 'keyboard': handle_keyboard(data); elif input_type == 'mouse': handle_mouse(data); elif input_type == 'voice': handle_voice(data)

Answer 22

These tasks are unrelated and randomly placed in one function, making the code confusing. ## Footnote Example: def random_tasks(): play_sound(); calculate_tax(); check_weather()

Answer 23

Coupling refers to inter-module binding, while Cohesion refers to intra-module binding.

Answer 24

It is advisable to strive for low coupling when creating a software system.

Answer 25

It is recommended to aim for high cohesion when creating a software system.

chapter 3 Flashcards

(49 cards)