Experiencing MIS 7th by m kronenke chapter 06

Q1: Why Is the Cloud the Future for Most  Leased computing resources quickly increased or decreased dynamically, programmatically, organizations only pay for resources used... • Cloud r

The Cloud

Chapter 6

“No, I mean 25 cents an hour and probably less.”

• Uses a traditional, third-party hosting organization whose servers most certainly are not elastic.

• Web hosting costs rising rapidly.

• Lucas suggests provisioning Web servers and databases in the

cloud.

• Costs: $50/mo plus 25-cents per hour for processing time used.

• Need to store new, large 3D printing design files.

Study Questions

Q1: Why is the cloud the future for most organizations?

Q2: What network technology supports the cloud?

Q3: How does the cloud work?

Q4: How do organizations use the cloud?

Q5: How can AllRoad Parts use the cloud?

Q6: How can organizations use cloud services securely?

Q7: 2024?

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Q1: Why Is the Cloud the Future for Most

 Leased computing resources quickly increased or

decreased dynamically, programmatically, organizations only pay for resources used

Example of a Video Banner Ad Customer

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

• Cloud resources are pooled

– Many different organizations share same physical

hardware through virtualization

• Benefit from economies of scale

– Average cost of production decreases as size of operation

increases

– Major cloud vendors operate enormous Web farms.

Why Is the Cloud Preferred to In-House Hosting?

Why Is the Cloud Preferred to In-House Hosting?

(cont'd)

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Why Now?

• Been around since 1960s

– Time-sharing vendors provided slices of computer time on a

use-fee basis.

• Cloud-based hosting advantageous

– Cheap processors, data communication, data storage nearly

free.

– Virtualization technology enables near instantaneous creation

of new virtual machine.

When Does the Cloud Not Make Sense?

• When, by law or standard industry practice, required to have physical control over its data

• Financial institution might be legally required to maintain

physical control over its data

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Ethics Guide: Cloudy Profit?

• Data broker (or data aggregator)

• Specializes in acquiring and analyzing market, buyer, and

seller data for real estate agents

• Alliance transitioned data storage and processing from own

Web farm to the cloud

• Improved speed and quality of data services at fraction of

prior costs, cut in-house hardware support staff by 65%

Q2: What Network Technology Supports the Cloud?

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Typical Small

Office/Home

Office

(SOHO) LAN

LAN Protocol

•IEEE 802.3

– Wired LAN– 10/100/1000 Mbps– Ethernet

•IEEE 802.11

– Wireless LAN– 802.11n

– Up to 600 Mbps– Bluetooth

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Abbreviations Used for Communications and

Computer Memory Speeds Differ

• Communications equipment, k stands for 1,000, not 1,024 as

it does for memory

• M stands for 1,000,000, not 1,024 × 1,024

• G stands for 1,000,000,000, not1,024 × 1,024 × 1,024 Thus,

100 Mbps is 100,000,000 bits per second

• Communications speeds are expressed in bits, memory

sizes expressed in bytes.

Connecting Your LAN to the Internet

Important ISP functions:

1.Provide a legitimate Internet address

2.Gateway to the Internet

3.Pay for Internet by collecting money from customers and

paying access fees and other charges to telecoms

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Summary of LAN and WAN Networks

Q3: How Does the Cloud Work?

The cloud resides

in the Internet

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

TCP and IP Protocols

• Transmission Control Protocol (TCP)

– Breaks traffic up into packets and send each one along.

• IP (Internet Protocol)

• Routers

IP Addressing

Public IP Addresses

• Identifies particular device on public Internet.

• Public IP addresses unique, worldwide.

• Assignment controlled by ICANN (Internet Corporation for

Assigned Names and Numbers)

Private IP Addresses

• Identifies particular device on a private network.

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Domain Registrar Company

Sample of Commerce Server Pages; Product Offer

Pages

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Three-tier Architecture

Watch the Three Tiers in Action! Sample of Commerce Server Page

• Commerce server requests shoe’s data from  DBMS.

• DBMS reads from database then returns data to  commerce server. 

• Server formats Web page with data and sends  html version of page to user’s computer.

• Customer places items in shopping cart.

• Customer checks out, commerce server  program processes payment, schedules  inventory processing, arranges shipping. 

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Approval Request Interactions Among Three

Departments

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Services for the Credit Department Using SOA

Principles (cont'd)

• Requests emailed to a generic email address in Credit or

Inventory, and those departments decide who will process

the request and how it will be processed

• SOA terms, work of the department encapsulated in the

department

Protocols Supporting Web Services

WSDL, SOAP, XML, and JSON

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Example XML Document

Example JSON Document

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Q4: How Do Organizations Use the Cloud?

Three Fundamental Cloud Types

Content Delivery Networks from Cloud Vendors

• Content delivery network (CDN)

– System of hardware and software stores user data in

many different geographical locations and makes data

available on demand

– Provides specialized type of PaaS, but usually

considered in its own category

– Minimize latency.

– Often used to store and deliver content seldom changes.

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

CDN Benefits

Server Locations for Amazon’s CloudFront

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Web Services Principles Applied to Inventory

Applications

Q5: How Can AllRoad Parts Use the Cloud?

• Some SaaS products AllRoad could use

PaaS Services at AllRoad

• Lease EC2 (Elastic Cloud 2) from Amazon.com

– Amazon.com pre-install Linux or Windows Server on cloud

hardware.

– AllRoad installs own software.

– Could license a DBMS, say SQL Server from Microsoft, and place

on an EC2 Windows Server instance.

• Use Windows Servers with SQL Server already installed from Microsoft Azure cloud offerings.

Amazon DBMS products with EC2

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

IaaS Services at AllRoad

• Provides basic hardware in the cloud

• Some companies acquire servers this way to load operating systems on

• Requires considerable technical expertise and management not available in small company

• Data storage services elastically available

Remote Access Using VPN: Apparent Connection

Private Cloud for Inventory and Other Applications

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Accessing Private Cloud over a Virtual Private

Network

Using MIS Inclass 6: What, Exactly, Does That

Standard Mean ??? 

• ISO 27001 - What does it mean?

• What's purpose of this standard

• Does Microsoft Azure comply with ISO 27001?

• Does Amazon’s EC2 comply with ISO 27001?

• Is Microsoft in accordance with SAS 70?

• Is Amazon in accordance with SAS 70?

Q7: 2024

• Cloud services faster, more secure, easier to use, cheaper

• Fewer organizations set up own computing infrastructure

• More pooling of servers across organizations

• More economies of scale achieved by cloud vendors

• Individuals, small businesses, large organizations readily

obtain elastic resources at a very low cost

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Q7: 2024 (cont'd)

• Large server farms employing few employees reduces

number of small companies that install and maintain

in-house email exchange and other servers, and jobs

• Cheap and elastic cloud services enable new small startups

• Enable organizations to develop more information systems,

cheaply and quickly, and increase demand for employees

who know how to use and manage information systems

Q7: 2024 (cont'd)

• Foster new categories of work

• Mobile systems will be standard

• More remote action systems

– Telediagnosis

– Telesurgery

– Telelaw enforcement

– Drones and other military equipment

– Live remote digital broadcasting.

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Security Guide: You Said What? About Me? In Class?

• Packet sniffing on networks, especially public wireless

networks, is always a possibility and can be done by people outside the room that you don’t even see

• Never send sensitive data except in an https or other

encrypted connection

• Never send anything over a public network that you wouldn’t

be proud to have published the next day

Guide: Is It Spying or Just Good Management

• 92% of employers monitor employees’ email, telephone, and Internet use (2003) by using:

Active Review

Q1: Why is the cloud the future for most organizations?

Q2: What network technology supports the cloud?

Q3: How does the cloud work?

Q4: How do organizations use the cloud?

Q5: How can AllRoad Parts use the cloud?

Q6: How can organizations use cloud services securely?

Case Study 6: FinQloud Forever … Well, At Least For The Required Interval …

• 1937, Securities and Exchange Commission (SEC) set out

rules that required securities brokers' records to be stored on media that cannot be altered

• 2003, SEC interpreted rule to enable storage of records on

read-write medium, provided it included software to prohibit

data alteration

C o p y r i g h t © 2 0 1 5 P e a r s o n E d u c a t i o n , I n c

Components of the FinQloud System

FinQloud Forever … (cont'd)

• Excludes extrinsic controls authentication, passwords, and

manual procedures because possible for such systems to