Page 5 - PowerPoint Presentation

Lesson 1. The World of the Modern Systems Analyst INSY 55: System Analysis and Design
o Identification of possible solutions or decisions.
o Access to information needed to solve a problem or make a decision. o Analysis of
possible decisions or of variables that will affect a decision. Sometimes this is called
“what if” analysis.
o Simulation of possible solutions and their likely results.
DSS tools include spreadsheets (MS Excel), PC-database management systems (MS Access),
custom reporting tools (Seagate Software’s Crystal Reports and Bio Technology’s Brio Query), and
statistical analysis programs.

1.2.4 Expert Systems (ES)

ES is an extension of DSS. It is a programmed decision-making information system that
captures and reproduces the knowledge and expertise of an expert problem solver or decision
maker and then simulates the “thinking” or “actions” of that expert.

It provides information for executives to use in strategic planning.
Expert systems address the critical need to duplicate the expertise of experienced problem
solvers, managers, professionals and technicians. These experts often possess knowledge and
expertise that cannot easily be duplicated or replaced in all organizations.

It imitates the logic and reasoning of the experts within their respective fields. It is
implemented with artificial intelligence (AI) technology that captures, stores, and provides access to
the reasoning of the experts.
Examples:

o A food manufacturer uses an expert system to preserve the production expertise of
engineers who are nearing retirement.
o A major credit card broker uses an expert system to accelerate credit screening that
requires data from multiple sites and databases. o A plastics manufacturer uses an
expert system to determine the cause of quality control problems associated with
shop floor machines.

1.2.5 Office Automation (OA) System
OAS is an IS application that supports systems that help employees create and share
documents, including reports, proposals, and memos.
OAS is more than word processing and spreadsheet applications. It supports the wide
range of business office activities that provide for improved work flow and communications
between workers, regardless of whether or not those workers are located in the same office. It is
concerned with getting all relevant information to those who need it.
Office automation functions include word processing, electronic messages (or electronic
mail), work group computing, work group scheduling, facsimile (fax) processing, imaging and
electronic documents and work flow management.
It can be designed to support both individuals and work groups.
o Personal Information Systems – are those designed to meet the needs of a single
user. They are designed to boost an individual’s productivity.
o Work Group Information Systems – are those designed to meet the needs of a work
group. They are designed to boost the group’s productivity.

Mr. John Mark L. Dula