Pytanie  |
Odpowiedź |
What is Requirements Specification? rozpocznij naukę
|
|
The process of writing down the user and system requirements in a requirements document
|
|
|
what are the key qualities of an Ideal Requirements Specification? rozpocznij naukę
|
|
Clear Unambiguous Easy to understand Complete Consistent
|
|
|
what are the sections of a structured specification? rozpocznij naukę
|
|
Description of the function specified Description of inputs and their source Description of outputs and their source Information needed for running the function Description of action to be taken Description of consequences or side-effects of the function
|
|
|
what are the problems of natural language? rozpocznij naukę
|
|
Lack of clarity Ambiguity Context dependency
|
|
|
what is an entity relationship diagram (ERD)? rozpocznij naukę
|
|
Techniques that identifies a system’s entities and the relationship between those entities
|
|
|
|
rozpocznij naukę
|
|
people, places, items, events, concepts
|
|
|
|
rozpocznij naukę
|
|
properties or descriptive qualities of an entity
|
|
|
What are ERD Relationships? rozpocznij naukę
|
|
nks between different entities
|
|
|
What are Decisison Tables? rozpocznij naukę
|
|
Technique for specifying complex if-then conditions
|
|
|
name some mathematical methods? rozpocznij naukę
|
|
Recurrence relations Axiomatic definition Formal specifications Implicit equations Regular expressions
|
|
|
What are Mathematical methods? rozpocznij naukę
|
|
Describes both static and dynamic aspects of the system
|
|
|
What is Requirements Validation? rozpocznij naukę
|
|
The process of “checking that requirements actually define the system that the customer really wants” (Sommerville)
|
|
|
List the Requirements Validation Checks rozpocznij naukę
|
|
Consistency checks, Completeness checks, Realism checks, Verifiability.
|
|
|
What is a consistence check? rozpocznij naukę
|
|
Consistency checks: requirements should not conflict
|
|
|
What is a compleatness check? rozpocznij naukę
|
|
Completeness checks: all functions and constraints need to be defined
|
|
|
|
rozpocznij naukę
|
|
Realism checks: make sure the requirements can be implemented
|
|
|
What is a Verifiability check? rozpocznij naukę
|
|
Verifiability: requirements should always be written so that they are verifiable/testable
|
|
|
list 3 requirments validation techniques. rozpocznij naukę
|
|
Requirements reviews, Prototyping, Test-case generation.
|
|
|
What is a Requirements reviews? rozpocznij naukę
|
|
systematic analysis of requirements by a team of reviewers
|
|
|
|
rozpocznij naukę
|
|
Prototyping: an executable model of the system is demonstrated to users/customers
|
|
|
what is Test-case generation: rozpocznij naukę
|
|
Test-case generation: derive tests for each of the requirements
|
|
|
What is requirements management? rozpocznij naukę
|
|
The process of “understanding and controlling changes to system requirements”
|
|
|
