SOLUTIONS RATED A+
✔✔software acquisition process - ✔✔Bringing a new information system from concept
to implementation requires several phases.
investigation, systems analysis, package development or package evaluation,
integration and testing , and implementation
✔✔systems analysis - ✔✔The phase of system acquisition that focuses on gathering
data on the existing system, determining the requirements for the new system,
considering alternatives within identified constraints, and investigating the feasibility of
alternative solutions.
How will a new information system solve the problem?
How will a new information system capitalize on an opportunity?
✔✔requirement - ✔✔A condition or capability that must be met or possessed by a
system or system element to satisfy an agreement, standard, specification, or other
formally imposed documents.
✔✔Requirements elicitation - ✔✔The practice of researching and discovering the
requirements of a system from users, customers, and other stakeholders.
✔✔stakeholders, users, managers, organization charts, forms and documents,
procedure manuals and policies, financial reports, IS manuals, and other measures of
business process - ✔✔internal sources for system analysis...
✔✔customers, suppliers, stockholders, government agencies, competitors, outside
groups, journals, and consultants - ✔✔external sources for system analysis...
✔✔Joint application development (JAD) - ✔✔A structured meeting process that can
accelerate and improve the efficiency and effectiveness of the investigation, analysis,
and design phases of a system development project.
✔✔Functional decomposition - ✔✔A technique that involves breaking down complex
problems or systems into smaller parts, making them easier to manage and understand.
✔✔progressive elaboration - ✔✔The iterative process of increasing the level of detail in
a project management plan as greater amounts of information and more accurate
estimates become available.
✔✔critical, high priority, medium priority, low priority - ✔✔developing prioritized set of
requirements in system analysis...
, ✔✔processes, databases, security and controls, and system performance - ✔✔defining
system requirements...
✔✔feasibility analysis - ✔✔An assessment of the technical, economic, legal,
operational, and schedule feasibility of a project.
✔✔Technical feasibility - ✔✔The process of determining whether a project is feasible
within the current limits of available technology.
✔✔Economic feasibility - ✔✔The process of determining whether the project makes
financial sense and whether predicted benefits offset the cost and time needed to obtain
them.
✔✔Legal feasibility - ✔✔The process of determining whether laws or regulations may
prevent or limit a system development project.
✔✔Operational Feasibility - ✔✔The process of determining how a system will be
accepted by people and how well it will meet various system performance expectations.
✔✔Schedule feasibility - ✔✔The process of determining whether the project can be
completed within a desired time frame.
✔✔systems analysis report - ✔✔A summary of the results of the system investigation,
with a recommendation of a course of action.
✔✔Systems Analysis Recommendation - ✔✔The systems analysis report summarizes
the results of the systems analysis and recommends a course of action...
redefine project and redo investigation, continue, or drop project
✔✔Waterfall system development process - ✔✔A sequential, multistage system
development process in which work on the next stage cannot begin until the results of
the current stage are reviewed and approved or modified as necessary.
✔✔investigation, analysis, design and coding, integration and testing, and
implementation - ✔✔Waterfall System Development Process...
✔✔-formal review at the end of each phase allows maximum management control
-participants must create considerable system documentation so that system
requirements cant be traced back to stated business needs
-creating and tracking specific milestones is straightforward - ✔✔advantages of waterfall
system...
✔✔-excessive time can be spent eliciting the requirements and building the design
("analysis paralysis")