System Analyst

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Chapter 1
Assuming the Role of the Systems
Analyst
Systems Analysis and Design
Kendall & Kendall

Major Topics
• Information systems
• Phases of analysis and design
• System maintenance
• CASE tools
• Alternate methodologies

SYTEM PROPOSAL (1 yellow pad)








COMPANY
ORGANIZATIONAL CHART
SIZE OF THE COMPANY: SME, LE
CONTACT PERSON & JOB POSITION
LOCATION
PRODUCT/SERVICES OFFERED
EXISTING SYSTEM – IDENTIFY THE SYSTEM USER
(i.e. HR DEPARTMENT)

ASSIGNMENT - GROUP
• Research (1 yellow pad)
– Identify the common servicing
department of the selected/target
company
(i.e. Advertising, Hospitality Resort,
Direct Selling, School, Trading)

Information
• Information is an organizational
resource, which must be
managed as carefully as other
resources.
• Costs are associated with
information processing.
• Information processing must be
managed to take full advantage
of its potential.

Information System Categories
1.
2.
3.
4.
5.
6.
7.

Transaction processing systems (TPS).
Office automation systems (OAS).
Knowledge work systems (KWS).
Management information systems (MIS).
Decision support systems (DSS).
Expert systems (ES) and Artificial Intelligence (AI).
Group decision support systems (GDSS) and
Computer-Supported Collaborative Work Systems
(CSCWS).
8. Executive support systems (EES).

1. Transaction Processing Systems
• Computerized information systems developed
to process large amounts of data for routine
business transactions (e.g., payroll and
inventory)
• Eliminates the tedium of necessary operational
transactions and reduces the time required to
perform them manually
• These are boundary-spanning systems that
permit the organization to interact with external
environments

2. Office Automation Systems
• Support data workers, who do not usually create
new knowledge, but rather analyze information so
as to transform data or manipulate it in some way
before sharing it
• Familiar aspects of OAS include the following:
– Word processing
– Spreadsheets
– Desktop publishing
– Electronic scheduling
– Communication thru e-mail,
voice mail, or video conferencing

3. Knowledge Work Systems
• Support professional workers
such as scientists, engineers,
and doctors by aiding them in
their efforts to create new
knowledge (often in teams)
• Office Automation Systems
(OAS) and Knowledge Work
Systems (KWS) work at the
knowledge level of the
organization

4. Management Information Systems
• Do not replace transaction processing systems;
rather, all MIS include transaction processing
• These are computerized information systems
that work because of the purposeful interaction
between people and computers
• Support users in accomplishing a broader
spectrum of organizational tasks than TPS,
including decision analysis and decision
making

Management information system
showing frequency and duration of calls.
Helping save staff time, minimizing
disturbance and improving the
quality of patient care.
Calls can be triggered from a variety
of devices including ceiling pulls, tail
call leads and pressure pads, each
designed to suit different levels of
patient dexterity. Once instigated,
calls are reset at the room from
which they were made via a button
or magnetic reset key.

Image Source Page: http://www.gdsystems.com/quantec-wired-nurse/55?pid=32&pagename=page/quantec_call_system

5. Decision Support Systems
• A higher-level class of computerized information
systems. Similar to the traditional MIS because
they both depend on a database as a source
of data.
• DSS are more closely tailored to the person or
group using them. Designed to help one or a
few managers make particular decisions.
• Departs from the traditional MIS because it
supports the decision making process in all
phases, but the actual decision is still upon the
decision maker.

Decision-support systems for sustainability in...
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