ISDS 406 Exam Questions with Accurate
Solutions
Four stages of the SDLC - what are they called and what generally happens in each one
1.) The Planning Phase is the fundamental process of understanding why an information
system should be built and determining how the project team will go about building it. It
has two steps:
1a.) Project Initiation: During project initiation, the system's business value to the
organization is identified; how will it contribute to the organization's future success?
The system request and feasibility analysis are presented to an information systems
approval committee (sometimes called a steering committee ), which decides whether
the project should be undertaken.
1b.) Set Up the Project: Once the project is approved, it enters project management.
During project management, the project manager creates a workplan, staffs the project,
and puts techniques in place to help control and direct the project through the entire
SDLC
2.) The Analysis Phase answers the questions of who will use the system, what the
system will do, and where and when it will be used. During this phase, the project team
investigates any current system(s), identifies improvement opportunities, and develops
a concept for the new system. This phase has three steps:
2a.) Determine Analysis Strategy: An analysis strategy is d
Definitions of business needs, business requirements, the business value
1. Business needs are the business-related reasons for initiating the system
A project is identified when someone in the organization identifies a business need to
build a system, some kind of "pain" within the organization, and unique and competitive
ways of using IT arise.
,Ex.) supporting a new marketing campaign, reaching out to a new type of customer,
improving interactions with suppliers or emerging technology, or a drop in market
share, poor customer service levels, or increased competition
This business need will then form the business requirements and business values.
2. Business requirements describe the reasons for developing the system and outline
the capabilities it will provide the organization
These requirements need to be explained at a high level so that the approval committee
and, ultimately, the project team understand what the business expects from the final
product
Business requirements summarize the features the IS must include, such as the ability to
collect customer orders online or the ability for suppliers to receive inventory status
information as sales occur
The business needs drive the high-level business requirements
3. Business values are the benefits that t
What are the two types of functional and four types of non-functional system
requirements?
Two Types of Functional Requirements
1.) Process-Oriented: A process the system must perform; a process the system must
do. It suggests a direct action resulting from an external or temporal event
Ex.) The system must allow registered customers to review their own order history for
the past 3 years; The system must check incoming customer orders for inventory
availability; The system should allow students to view course schedules while registering
for classes
2.) Information-Oriented: Information the system must contain. It suggests things that
happen involving information or time triggers to collect or produce information
Ex.) The system must retain customer order history for 3 years; The system must include
, real-time inventory levels at all warehouses; The system must include budgeted and
actual sales and expense amount for the current year and 3 previous years.
Four types of Nonfunctional Requirements
1.) Operational: The physical and technical environments in which the system will
operate.
Ex.) The system will run on Android mobile devices; The system should be able to
integrate with the existing inventory system; The system should be compatible with any
Web browser.
2.) Performance
What is the purpose of the USE CASE?
Computer-Aided Software Engineering (CASE) - software that automates all or part of
the development process
A use case is a description of how a system interacts with its environment by illustrating
the activities that are performed by the users of the system and the system's responses.
The goal is to create a set of use cases that describe all the tasks that users need to
perform using the system
Use cases are often thought of as an external or functional view of a business process,
showing how the users view the process rather than the internal mechanisms by which
the process operates. Since use cases describe the system's activities from the user's
perspective in words, it is essential to involve users in their development. Therefore,
creating use cases helps ensure that users' insights are explicitly incorporated into the
new system
Define the meaning and purpose of the four basic symbols
found on a data flow diagram.
Solutions
Four stages of the SDLC - what are they called and what generally happens in each one
1.) The Planning Phase is the fundamental process of understanding why an information
system should be built and determining how the project team will go about building it. It
has two steps:
1a.) Project Initiation: During project initiation, the system's business value to the
organization is identified; how will it contribute to the organization's future success?
The system request and feasibility analysis are presented to an information systems
approval committee (sometimes called a steering committee ), which decides whether
the project should be undertaken.
1b.) Set Up the Project: Once the project is approved, it enters project management.
During project management, the project manager creates a workplan, staffs the project,
and puts techniques in place to help control and direct the project through the entire
SDLC
2.) The Analysis Phase answers the questions of who will use the system, what the
system will do, and where and when it will be used. During this phase, the project team
investigates any current system(s), identifies improvement opportunities, and develops
a concept for the new system. This phase has three steps:
2a.) Determine Analysis Strategy: An analysis strategy is d
Definitions of business needs, business requirements, the business value
1. Business needs are the business-related reasons for initiating the system
A project is identified when someone in the organization identifies a business need to
build a system, some kind of "pain" within the organization, and unique and competitive
ways of using IT arise.
,Ex.) supporting a new marketing campaign, reaching out to a new type of customer,
improving interactions with suppliers or emerging technology, or a drop in market
share, poor customer service levels, or increased competition
This business need will then form the business requirements and business values.
2. Business requirements describe the reasons for developing the system and outline
the capabilities it will provide the organization
These requirements need to be explained at a high level so that the approval committee
and, ultimately, the project team understand what the business expects from the final
product
Business requirements summarize the features the IS must include, such as the ability to
collect customer orders online or the ability for suppliers to receive inventory status
information as sales occur
The business needs drive the high-level business requirements
3. Business values are the benefits that t
What are the two types of functional and four types of non-functional system
requirements?
Two Types of Functional Requirements
1.) Process-Oriented: A process the system must perform; a process the system must
do. It suggests a direct action resulting from an external or temporal event
Ex.) The system must allow registered customers to review their own order history for
the past 3 years; The system must check incoming customer orders for inventory
availability; The system should allow students to view course schedules while registering
for classes
2.) Information-Oriented: Information the system must contain. It suggests things that
happen involving information or time triggers to collect or produce information
Ex.) The system must retain customer order history for 3 years; The system must include
, real-time inventory levels at all warehouses; The system must include budgeted and
actual sales and expense amount for the current year and 3 previous years.
Four types of Nonfunctional Requirements
1.) Operational: The physical and technical environments in which the system will
operate.
Ex.) The system will run on Android mobile devices; The system should be able to
integrate with the existing inventory system; The system should be compatible with any
Web browser.
2.) Performance
What is the purpose of the USE CASE?
Computer-Aided Software Engineering (CASE) - software that automates all or part of
the development process
A use case is a description of how a system interacts with its environment by illustrating
the activities that are performed by the users of the system and the system's responses.
The goal is to create a set of use cases that describe all the tasks that users need to
perform using the system
Use cases are often thought of as an external or functional view of a business process,
showing how the users view the process rather than the internal mechanisms by which
the process operates. Since use cases describe the system's activities from the user's
perspective in words, it is essential to involve users in their development. Therefore,
creating use cases helps ensure that users' insights are explicitly incorporated into the
new system
Define the meaning and purpose of the four basic symbols
found on a data flow diagram.
