ITSS3300 quiz

Information Age

Production, Distribution and control of Information

Digital Revolution

Conversion from mechanical/analogue devices to digital devices

Bell’s Law

New class of computers establishes new industry each decade. new platforms, programming environments, industries, networks, and information systems

Force – 1: Moore’s Law (1965)

The number of transistors per sq inch on an IC doubles every 18 months

Increased processing power -> new devices, new applications, new companies

Force – 2: Metcalfe’s Law

network value equal to square of number of users connected to it

Force – 3: Nielsen’s Law

Network connection speeds for high-end users will increase by 50% per year

Emergence of new companies, products, platforms

Force – 4: Kryder’s Law

Storage Density on magnetic disk increasing at an exponential rate

Non-routine cognitive skills

-            Abstract Reasoning

-            System thinking

-            Collaboration

-            Ability to Experiment

System

group of components that interact to achieve some purpose

Information System

A group of components that interact to produce information

Can be bought

Hardware

Software

Data

CANT be bought

Procedures

People

Five Components of an Information System

The five components of an information system include hardware, software, data, procedures, and people, which work together to collect, process, store, and disseminate information.

Information Technology (IT)

Products

Methods

Inventions

Standards

IT Drives development of new

Information System

Business Professionals need to:

-            active role to make sure systems meet needs

-            understand how IS constructed

-            Consider users needs during development

-            Learn how to use Information System

-            Remember security & backups

What questions need to be asked and how do you ask them (art of asking smarter questions)

1. “What is the purpose of our xxx (e.g., Facebook page)?”

2. “What is it going to do for us?”

3. “What is our policy for employees’ contributions?”

4. “What should we do about critical customer reviews?”

5. “Are the costs of maintaining the page sufficiently offset by the benefits?”

Produce Information

Procedures & People

Manipulate Data

Hardware & Software

Common Mistake

Can not buy an Information System

Low-Tech IS

human work is required (eg. send emails manually)

High-Tech IS

more work has moved from human to computer (eg. send emails automatically)

Scope of new info systems

1. What new HW would you need

2. What programs would you need to license?

3. What databases and other data must you create?

4. What procedures will need to be developed for both use and administration of the IS?

5. What will be the impact of new tech on people?

IF ON PAPER OR SCREEN

IT IS DATA

IF IN MIND OR HUMAN

IT IS INFORMATION

Characteristics of Data required for Good Information

• Accurate

  • Users must be able to rely on results of IS

• Timely

  • Available in time for its intended use

Each IS contains an application

HW, SW, data

One business process can use many IS

Single IS can support many business processes

BPM (Business Process Model)

Create new business processes and to make changes to existing processes

SDLC (System Development Life Cycle)

process used to develop both IS and applications

SCRUM

new development process that was made to overcome problems created when using SDLC

Business Analyst

To ensure VP and IS meets organizations competitive strats

System Analyst

IS professionals who understand both business and IT. Focused on IS development

3 reasons business processes need management

• improve process quality

• Change in Technology

• Change in business environment

Customer Relationship Management (CRM)

Sales application

Relationship Management Application

Customer Support Application

(Elimates duplicated data)