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With phased conversion, one or more locations or units/work groups within a location is
selected to be converted first as part of a pilot test, and if the system passes the pilot
test, then the system is installed at the remaining locations.
The most commonly used approach to delivering training for a new system is
computer-based training.
Denormalization is performed before the object storage is optimized.
Activity diagram is a representation for the non-functional model.
In terms of storage space, the most efficient tables in a relational database have
redundant data and many null values.
The postimplementation activities performed during the refreeze process are system
support, project assessment, and change management.
A project manager most likely would not have worked as a systems analyst in the past,
since project management career track is independent of the system analyst's career
track.
Of the potential adopters 40% to 60% are reluctant.
Root cause analysis attempts to find solutions for the business problems.
The programming process of a new systems project is considered completed prior to
testing.
Client-based systems are ill equipped to meet operational, performance, security, and
cultural/political requirements.
Systems analysts examine four important factors when selecting a conversion strategy:
risk, cost, communication, and time required.
The initial state in a behavioral state diagram represents the point at which the object
begins to exist.
As you work through the SDLC, it is likely that the system boundaries will change.
Simultaneous conversion has a higher cost than pilot and phased conversion because
more staff are required to support all of the locations.
Paths coming out of a decision node are always mutually-exclusive, while the paths
coming out of a fork node are sometimes concurrent and sometimes
mutually-exclusive.
You should try to maximize the cohesion within an encapsulation boundary and
minimize the coupling between the encapsulation boundaries.
Calculating the break-even point helps in understanding how long it will take before the
system creates real value for the organization.
With Platform as a Service (PaaS), the cloud vendor not only provides hardware
support to a customer, but also provides the customer with either package-based
solutions, different services that can be combined to create a solution, or the
development tools necessary to create custom solutions in the PaaS vendor's cloud.
A requirement is a statement of what the system must do and how it will be
implemented.
Development costs that are examined during feasibility analysis include costs for
software licenses and software upgrades.
Pseudocode is useful for writing algorithm specifications.
Mapping from the problem domain to the data management objects in an RDBMS
format is a straightforward one-to-one mapping.
The environment workflow in the Unified Process is designed to deal with the
organizational and policy issues the project faces within the organizational
environment.
The first step in drawing a communication diagram is to identify which objects and
associations between the objects participate in the communication.
Project management is the second major component of the planning phase of the
systems development life cycle (SDLC), and it includes three steps: creating the work
plan, staffing the project, and controlling and directing the project.
A 20% increase in sales volume is a tangible benefit that can be included in a
cost-benefit analysis.
Guidelines for aesthetics require that as much information as possible be squeezed onto
a page or a screen with a minimum of white space; this will make the form or report
pleasing to the eye and extremely functional.
The most efficient tables in a relational database in terms of storage space have
redundant data and few null values.
Design models refine analysis models by adding details from the solution domain.
Use-case point"based estimation also has a set of factors that are used to adjust the
use-case point value.
The first step in creating use case diagrams is to identify the primary actors and their
goals.
A detailed outline of the lines of code that need to be written is known as pseudocode.
Each object can both send and receive messages.
In the textual analysis of a use case, the use case name suggests possible classes while
the verbs suggest possible operations.
CRC cards, class diagrams, and object diagrams are three representations could be used
for structural modeling.
The evolutionary Work Breakdown Structure makes it easy to compare the current
project with past project
A very complex use case should be broken down into a set of use cases.
Thin client-server architectures do not have the ability to address cultural and political
requirements better than the server-based architectures.
