Management Information Systems

– By Rainer, Prince, Watson

This is another quick summary and transplant of some short hand notes from this MIS book. Do with this what you will. It’s meant to serve as a free guide.

1. Chapter 1
2. Chapter 2 Organizational Strategy, Competivie Advantage, and Information Systems
3. Chapter 3 Data and Knowledge Management
4. Chapter 4 Telecommunications + Networking
5. Chapter 5 Business Intelligence
6. Chapter 6 Ethics and Privacy
7. Chapter 7 Information Security
8. Chapter 8 Social Computing
9. Chapter 9 E business and e commerce
10. Chapter 10 Wireless Mobile Computing
11. Chapter 11 Information Systems Within the Org
12. Chapter 12 Customer Relationship Management
13. Chapter 13 Supply Chain Management
14. Chapter 14
15. Bonus
    1. Plug IT In 1
    2. Plug IT in 2
    3. Plug IT in 3
    4. Plug IT in 4 Cloud Computing
    5. Plug IT in 5 Intelligent Systems
    6. Plug IT in 6 Project Planning

Chapter 1

IT is any computer based tool that people use to support the information and processing needs.

IS – collects, processes, stores, analyzes and disseminates info.

Everything that we do today, involves software. All roles, jobs, careers, and businesses are growing because of it. Data –> Info –> Knowledge

FAIS- functional area information system
ERP – enterprise resource planning, organizes across all information systems

Chapter 2 Organizational Strategy, Competivie Advantage, and Information Systems

Every business faces multiple pressures from markets, terriists, hackers, competitors.

Porter five forces include threat of entrants, buying power, threat of substitutes, supplier power, and buyer power.

IT has to respond to market, tech, and societal pressures.

The five strategies to combat these are; cost leadership, different strategy, innovation strategy, customer orientation strategy, operation effectiveness strategy.

Chapter 3 Data and Knowledge Management

Managing Data is a big problem for many companies.

Data goverance is the approach to managing this data.

Database Management Approach helps minimize the following;
– Data redundancy
– Data isolation
– Data inconsistency

It helps maximize;
– Data integrity
– Data independence
– Data security

Data hierarchy
A bit is the smallest unit of data a computer can process. 8 bits = 1 byte.

DBMS – set of programs to provide users with tools to create and manage a database.

Falt vs Relational
Flat tables contain all information across the entire table. While relational tables separate the tables and keep the information to the smallest possible.

Big Data – Data that is so large and volatile that it’s difficult to manage. It’s varied, unstructured, structured, high velocity, uncertain patterns, transformed, and sophisticated.

Issues with big data

Untrusted sources, its dirty, changes in data streams.

Data warehouses vs Data Marts

Data warehouse repository of historical data that is subject organized.
Data mart – low cost, scaled down version of warehouses more for a specific users needs.

Integrated, organized by business dimension, used in analytical processing.

Data integration – involves ETL processes (extracting, transforming, loading) into a data mart or warehouse.

Knowledge Management
Explicit – technical, facts, reports
Tacit – subjective knowledge

KMS – Knowledge Management System
Knowledge –> Create –> Capture –> Refine –> Store –> Manage –> Disseminate

Chapter 4 Telecommunications + Networking

1. Modern Orgs compyuters don’t work in isolation
2. Data exchange is done via telecom technologies
3. Exchange can take place over any distance or size

Computer Network – A system that connects computers and other devices so data can be transmitted

Networks
PAN
LAN
MAN
WAN

A router is a communications processor that routes messages from LAN to the internet.

Analog signals – continuous waves that transmit into by altering the characteristics of the waves
Digital signals – Discrete pulses that are either on or off representing a series of bits

Modem – converts analog to digital and digital to analog
Coaxial cable – consists of insulated copper wire
Fiber optic cable – glass fibers that transmit into via light

Network Protocols

Ethernet – A common LAN protocol

Transmission control protocol/ethernet protocol (TCP/IP) basic of internet transmission

Moves(1) Sequences (2) Acknowledges(3)

HTTP – Hyper Text Transfer Protocol

Client/Server Computing – links two or more computers in arrangement with servers

P2P Processing – Type of client/server distributed processing where each computer acts as a client and server

Internet – Network of networks which grew from Darpa, which all started as a military intranet.

IP Addresses distinguish themselves from all others using 4 sets of numbers in a IPv4 number format. 2 to the power of 32

IPv6 contains 128 bits of information and can be 2 to the power 128

ICANN organizes the numbers of the world, they accredit registrars of the world called the DNS.. The right most part of any domain is called the top level domain.

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