What is the intent of using User Case Point Estimation?
What is the intent of using User Case Point estimation?
A top - down quantitative assessment of project size, basis the use cases which is then used to arrive at effort using a productivity rate.
The number of use case points in a project is a function of the following:
* The number and complexity of the use cases in the system
* The number and complexity of the actors on the system
* non - functional requirements ( such as portability, performance, maintainability) that are not written as use cases
* the project environment (such as the language, the team's motivations, and so on )
Accuracy of estimation is directly propostional to :
* requirements clarity
* quality of use clases (details)
* quality of data being used for estimation (historical data)
* subject matter expertise
The parameters usedi n computing use case points are:
* use case actors
* use case transactions
* technical complexity factors
* environmental complexity factors
Use Case Point: it is size measure. it is only useful for functional requirement. Developed by Gustab Karner of objectory in 1993, derived from Function Points. Uses weighting on actors and use cases to assess scope. Uses environmental and technology factors to assess risk, applicable to small team, <5 accurate.="" and="" be="" but="" can="" development="" dirty="" month="" p="" quick="">
Goal->use case->functional requirement->design->implementation
Goal->non-functional-requirement->functional requirement (non - functional requirement if any)
Functional Requirement->Constraints->Design (Contraints if any)
use case provide a mechanism for articulating the product scope fromt he user's point of view
* Size and complexity can be attributed to each use case, but are reqally based upon the artefacts derived from use case
Use case Actor: To determine the user complexity, a set of attribute, simple or complex actor may be used.
Transaction: A transaction is an even that occurs between an actor and the target system, the envent being performed entirely or not at all.
A transaction is a round trip triggered by the actor and responded to by the system
One or more steps in the flow of the events define the transactions
A single use case may have one or more transactions
Secondary scenarios help clarify the transaction.
What are not transactions?
Use case transaction is not alway s a use case steps.
Use case transacation is not a system step
A stimulus from the actor is not a transaction unless it consists of a round - trop
A transaction need not necessarily involve a database activity
Type: Simple , average and complex
There are two way of handling non - functional requirements:
There are two important element, where we access these transaction in terms of complexity, like simple or average or complex.
Accessing the value with respect of the project gives the Unadjested access point. As it is still un-clear, whether functional or non - functioanl component.
1.false, 2._, 3. b, 4. b,
A top - down quantitative assessment of project size, basis the use cases which is then used to arrive at effort using a productivity rate.
The number of use case points in a project is a function of the following:
* The number and complexity of the use cases in the system
* The number and complexity of the actors on the system
* non - functional requirements ( such as portability, performance, maintainability) that are not written as use cases
* the project environment (such as the language, the team's motivations, and so on )
Accuracy of estimation is directly propostional to :
* requirements clarity
* quality of use clases (details)
* quality of data being used for estimation (historical data)
* subject matter expertise
The parameters usedi n computing use case points are:
* use case actors
* use case transactions
* technical complexity factors
* environmental complexity factors
Use Case Point: it is size measure. it is only useful for functional requirement. Developed by Gustab Karner of objectory in 1993, derived from Function Points. Uses weighting on actors and use cases to assess scope. Uses environmental and technology factors to assess risk, applicable to small team, <5 accurate.="" and="" be="" but="" can="" development="" dirty="" month="" p="" quick="">
Goal->use case->functional requirement->design->implementation
Goal->non-functional-requirement->functional requirement (non - functional requirement if any)
Functional Requirement->Constraints->Design (Contraints if any)
use case provide a mechanism for articulating the product scope fromt he user's point of view
* Size and complexity can be attributed to each use case, but are reqally based upon the artefacts derived from use case
Use case Actor: To determine the user complexity, a set of attribute, simple or complex actor may be used.
Transaction: A transaction is an even that occurs between an actor and the target system, the envent being performed entirely or not at all.
A transaction is a round trip triggered by the actor and responded to by the system
One or more steps in the flow of the events define the transactions
A single use case may have one or more transactions
Secondary scenarios help clarify the transaction.
What are not transactions?
Use case transaction is not alway s a use case steps.
Use case transacation is not a system step
A stimulus from the actor is not a transaction unless it consists of a round - trop
A transaction need not necessarily involve a database activity
Type: Simple , average and complex
There are two way of handling non - functional requirements:
There are two important element, where we access these transaction in terms of complexity, like simple or average or complex.
Accessing the value with respect of the project gives the Unadjested access point. As it is still un-clear, whether functional or non - functioanl component.
1.false, 2._, 3. b, 4. b,
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