what is the purpose of the system analysis phase - Answer-to figure out the business needs
what is the purpose of the system design phase - Answer-to decide how to build a system that can fulfill those needs
system analyst role in system design - Answer-most knowledgeable about the business r...
BMGT 403 Exam 2 Questions with
Correct Answers
what is the purpose of the system analysis phase - Answer-to figure out the business
needs
what is the purpose of the system design phase - Answer-to decide how to build a
system that can fulfill those needs
system analyst role in system design - Answer-most knowledgeable about the business
requirements
database specialists role in system design - Answer-advise on database technology
network specialists role in system design - Answer-advise on network technology
applications programmers role in system design - Answer-experts in new and existing
applications development tools and standards
what is the deliverable for system design - Answer-recommended solution new system
what is the system design phase composed of - Answer-logical system design and
physical system design
what does the logical system design include - Answer-the proposed system and the
synchronized data and process models
what does the physical system design include - Answer-the candidate system solutions
matrix, the feasibility analysis matrix, physical dataflow diagrams, and input and output
designs
synchronizing of system models - Answer-network, data, interface, and process models
represent different views of the same system, but these views are interrelated
why do systems analysts need to synchronize different views - Answer-to ensure
consistency and completeness of the total system specification
data and process model synchronization - Answer-- there should be one data store in
the process models for each entity in the data model
- there should be sufficient processes in the process model to maintain the data in the
data model
Data-to-Process-CRUD-Matrix - Answer-rows: indicate entities and their attributes as
they appear in the proposed system ERD
, columns: indicate elementary processes as they appear in the proposed system DFDs
cells: document level of access where CRUD (create, read/use, update/modify,
delete/deactivate)
why does every entity should have at least one C, R, U, D entry for system
completeness - Answer-otherwise one or more event processes were probably omitted
from the process models
the candidate system solutions matrix/table - Answer-defines the candidate solutions
that can provide the possible matches between business requirements and
hardware/software specifications (provides a comparison and contrast of the
characteristics of the candidate solutions)
what are alternative solutions to the candidate solutions - Answer-- do nothing: leave
the current system unchanged (not an option in this course)
- reengineer all the business processes and the computer-based processes
- enhance existing computer processes
what are alternative solutions are defined in terms of - Answer-input/output methods,
data storage methods, computer hardware and software requirements, and people
implications
candidate solutions - Answer-- determine which processes will be implemented as a
computer process or manual process
- based on response time requirements, establish which process is a batch process or
online process
- determine the alternatives for information system design (centralized or distributed
computing)
- consider the make versus buy (COTS) alternatives for application programs
- if software programs are to be developed, which technology will be used (Java, visual
basics, etc.)
- determine type of data storage technology will be used (electronic vs. non-electronic
- consider the applicability of the various networking technologies (LAN, WAN) and their
implications in information system design
the feasibility analysis matrix - Answer-- compares and contrasts the effectiveness of
each candidate regarding each feasibility dimension
- the weights of the feasibility dimensions which have to be justified
- establish the weighting to be given to each the feasibility criteria
- each row can be assigned a score for each criteria
- a final ranking of weighted average is recorded in the last row
the feasibility analysis matrix (rows, columns, cells) - Answer-rows: describe the general
solution and a ranking of the candidates
columns: correspond to the same candidate solutions as shown in the candidate
systems matrix
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