Showing posts with label Information Systems In Class Notes. Show all posts
Showing posts with label Information Systems In Class Notes. Show all posts

Tuesday, July 19, 2016

IS Access Lab In Class Notes


  • Microsoft Access 
    • Level of Data Base
      • Personal Data Base
    • Database File Extension for Access 2013
      • .accdb
    • How to Make A Table
      • Switch to Design View
      • Name Table
      • Label Each Row and Set Each Row Data Type As Short Text
        • If a row is specifically a number
          • Then set the data type as "number"
    • How Do You Make Multiple Rows Primary Keys?
      • Hold control and click each row
      • Click the primary key button
    • Why in the Example are Columns Underlined?
      • They are primary keys
    • How Do You Make Something Uniquely Identified
      • Highlight a row
      • Click the Primary Key Button
    • How Do You Create a Form For A Table
      • Highlight Table
      • Click "Form" Under the Create Tab
    • How Do You Create Relationships
      • Close all tables
      • Click Relationships Under Create Tab
      • Hold Control and Click all Tables That You Want to Relate
      • Click Add
      • Close Window
    • How To Create a Relationship Between Table Rows
      • Drag Rows of the same name into each other
      • A window will pop up, that is labeled Edit Relationships
      • Check mark 'Enforce Referential Integrity'
      • Click Create
    • How To Create A Query
      • Close all Tables
      • Goto Create Tab
      • Click Query Design
      • Hold Control and Select All Necessary Tables
      • Click Add
      • Close Window
      • Set Each Appropriate Field
      • Type the Appropriate Criteria under the Appropriate Field, To Grab Info only on that Criteria
  • Microsoft SQLServer 
    • Level of Database
      • Mid Range Database
  • Oracle, IBM DB 2 
    • Level of Database
      • Enterprise Strength Database System

Monday, July 18, 2016

Information Systems Chapter 6


  • Why is the Cloud the Future of Most Organizations?
    • What Does Elastic Leasing Mean?
      • Flexible for Unpredictable Demand
      • Organizations only pay for the resources they actually use.
    • What is The Cloud?
      • Elastic Leasing of computer resources via the internet.
    • How do Organizations Pool Resources?
      • Many organizations share the same physical hardware through virtualization.
    • What is the Benefit Organizations Get From The Economies of Scale of Pooling Resources?
      • Average Cost of Production decreases as the size of the operation increases.
    • What are Web Farms?
      • Enormous data centers, run by major cloud vendors.
    • When Would You Not Want to Use The Cloud?
      • If the law or standard industry practice, require physical control or possession of data.
        • Example
          • Some financial institutions if not all, are required to have physical control over its data.
  • What network technology supports the cloud?
    • Types of Network Technology
      • Local Area Network
        • Characteristics
          • Computers connected at a single physical site.
        • Protocol
          • Bluetooth
            • For transmitting data short distances
      • Wired Area Network
        • Characteristics
          • Computers connected between two or more seperate sites.
      • Internet and internets
        • Characteristics
          • Network of networks
    • How are Communication Speeds Expressed?
      • Bits
    • How is Memory Size Expressed?
      • Bytes
        • One Byte Equals Eight Bits
    • Important ISP Functions
      • Provides legitimate internet access
      • Gateway to the internet
      • Collects money from customers who pay access fees and other charges to telecoms to pay for internet 
  • How does the cloud work?
    • What Are Packets?
      • Messages that are broken down and moved through the internet.
    • What Are Carriers?
      • Telecom Providers
    • What Are Peer Agreements?
      • Agreements to exchange traffic among multiple carriers, without paying access fees.
    • What is Net Neutrality?
      • All data is treated equally
    • What is the Bandwidth Problem?
      • Some people use more bandwidth than others
    • What is a Public IP Address?
      • Identifies a particular device on public internet
    • What is the ICANN?
      • Internet Corporation For Assigned Names And Numbers
    • Who assigns Public IP Addresses?
      • ICANN
    • What is a Private IP Address?
      • Identifies a device on a private network
        • Probably a LAN Network
    • What are the Major Benefits of IP Addresses?
      • IP addresses are conserved when multiple computers are on the same public LAN Network.
      • Using Private IP addresses eliminates registering for an IP address from ICANN.
    • What is IPv4?
      • Four Decimal Dotted Notation
        • Example
          • 123.123.123.123
    • What is a Domain Name?
      • Defininition
        • Unique name affiliated with a public IP address
      • Important Notes
        • Many domain names can point to the same address
        • Domain Names can change their affiliated IP addresses 
    • Three Tier Architecture 
      • User Tier
        • User Computers
          • Web Browsers
      • Server Tier
        • Web Server Computers
          • Web Server
          • Other Applications
          • Computer Server Applications
      • Instructions and Data
      • Database Tier
        • Database Management System
        • Database
    • What Are SOA Principles?
      • SOA 
        • Surface Oriented Architecture
      • Load Balancers
        • Help balance the loads of three tier architecture at each tier.
      • Each department formally states the data it expects to receive, with request and data it returns in response
      • Every Interaction is Done in The Same Way
      • No Department needs to know who works in other departments or how other departments work
    • Hierarchy of Protocols Supporting Web Services
      • Web Service Protocols
        • WSDL/SOAP
      • Application Layer Protocols
        • smtp
        • ftp
        • http(s)
      • Internet Plumbing Protocols
        • Four more layers or protocols
        • TCP/IP Protocol Architecture
  • How do organizations use the cloud?
    • Content Delivery Networks
      • System of hardware and software stores user data in multiple geographic locations, and makes data available on demand.
      • Benefits
        • Minimizes Latency
        • Protection From DOS Attacks
        • Reduced Delivery Costs For Mobile Users
        • Pay as you go
      • When They Are Best Used
        • Store and Deliver Seldom Used Content
  • How can AllRoad Parts use the cloud?
    • SASS Products
      • Definition
        • Software as a service
      • Use
        • To download stuff
      • Provide more added value
    • PaaS Services
      • Definition
        • Platform as a Service
      • Use
        • Virtualization
          • Virtual Machines
      • Provide more added value
    • IaaS Services
      • Definition
        • Infrastructure as a Service
      • Use
        • Machine with possible software already installed
      • Level of Service
        • Lowest
      • Provides basic hardware in the cloud
      • May acquire servers to load operating systems on them
      • Requires considerable expertise and management
      • Not available for small companies
  • How can organizations use cloud services securely?
    • VPN
      • Virtual Private Networks
    • Virtual Private Cloud
      • Subset of a public cloud with highly restricted, secure access. 
    • What is Geotagging?
      • Geographical metadata added to everything
  • 2025?
    • Faster, safer, better, cloud services

Monday, July 11, 2016

In Class Notes Information Systems 7/11/16


  • How Do You Get a Competitive Advantage?
    • Do something better than any of your competitors, or do something that none of your competitors can do.
      • You don't want to be easily substituted
    • Competitive Strategies
      • Industry Wide Competitive Strategies
        • Cost
          • Lowest cost across the industry
        • Differtiation
          • Better product/service across the industry
      • Focused Competitive Strategies
        • Cost
          • Lowest cost within an industry segment
        • Differentiation 
          • Better product/service within an industry segment
  • What an You Do Better?
    • Lower Cost
    • Better Service
  • Value Chain Structure
    • Support Activities
      • Management Supplier Relationships
      • Investigate New Designs
      • Hire and Support Employees
      • Manage Company Resources
    • Primary Activities
      • Inbound Logistics
        • Acquire Inputs
      • Operations/Manufacturing
      • Outbound Logistics
        • Output outputs
      • Sales and Marketing
      • Customer Service
  • What is Margin?
    • Value-Cost
  • What is Total Margin?
    • Margin of Primary Activities + Margin of Supporting Activities
  • Business Processes
    • Figuring out how to get the competitive advantage over your opponents.
    • It is how you actual have competitive advantage. 
    • Every organization has its own unique businesses processes.
    • Rule of Information Systems
      • Always supports business processing 
      • No matter how good your IS is, if your business model sucks, it does you no good.