Wednesday 19 October 2016

CHAPTER 14

ENTERPRISE COMPUTING

Enterprise computing is a buzzword that refers to business-oriented information technology that is critical to a company's operations. It involves the use of computers in networks, such as LANs and WANs (Wide Area Network), or a series of interconnected networks that encompasses a variety of different operating systems, protocols and network architectures.


Types of enterprises:


  • Retail.
  • Manufacturing.
  • Service.
  • Wholesale.
  • Government.
  • Educational.
  • Transportation.
In an enterprise, users typically fall into one of four categories:
  • Executive management
  • Middle management
  • Operational management
  • non-management employees.


Enterprise information is the information gathered in the ongoing operations of an enterprise-sized organization

  • Business intelligence
  • Business process management
  • Business process automation
Managers coordinate resources by performing four activities:
  • Planning
  • Organising
  • Leading
  • Controlling.

An information system is a set of hardware, software, data, people, and procedures that work together to produce information.

Enterprises

Accounting and finance
  • Accounting software- manages everyday transaction.
  • Billing software- reconcile purchases with customer payments.
  • Financial software- helps managers budget, forecast and analyse.

Human resources
  • A human resources information system (HRIS) manages one or more human resources functions
  • Employee relationship management systems manage communication between employees and the business
Engineering or product developmet
  • Computer-aided design (CAD) uses a computer and special software to aid in engineering, drafting, and design
  • Computer-aided engineering (CAE) uses computers to test product designs
Manufacturing
  • Computer-aided manufacturing (CAM) is the use of computers to control production equipment
  • Computer-integrated manufacturing (CIM) uses computers to integrate the many different operations of the manufacturing process
  • Material Requirements Planning (MRP)- uses software to help monitor and control processes related to production.
  • Manufacturing Resource Planning II (MRP II)- is an extension of MRP and also includes software that helps in scheduling.
  • Quality Control System- helps an organisation maintain or improve the quality of its products or services.
Marketing
  • Marketing Information System- serves as a central repository for the tasks of a marketing department.
Sales
  • Sales force automation (SFA) software equips traveling salespeople with the electronic tools they need to be more productive
Distribution
  • provide forecasting for inventory control
  • manage and track shipping of products
  • provide information and analysis on inventory in a warehouse.
Customer service
  • Customer interaction management (CIM) software manages the day-to-day interactions with customers
Information technology
  • The information technology (IT) department makes technology decisions for the enterprise
  • Whether to build or buy new information systems
  • When a computer or information system has outlived its useful life
  • Web site management programs collect data designed to help organizations make informed decisions regarding their Web presence
  • Office Information System (OIS)- oriented to word processing, electronic mail and other similar office functions.
  • Transaction Processing System (TPS)- for business transactions involving the collection, modification and retrieval of all transaction data.
  • Management Information System (MIS)- focuses on management of information systems to provide efficiency and effectiveness of strategic decision making.
  • Decision Support System (DSS)- a set of related computer programs and data required to assists with analysis and decision making within an organisation.
  • Expert System- a piece of software programmed using artificial intelligence. It uses database of expert knowledge to offer advice or make decision. For example, it is the help button found in our operating system.
  • Integrated Information System (IIS)- an array of multiple information sets linked together in an organised way.

Technologies used in enterprise:
    Portals
    • a collection of links, content and services presented on a Web page that are interesting for a particular job function/


      Data Warehouse
      • a huge database that stores and manages the data required to analyse historical and current transactions.


        Electronic Data Interchange (EDI)
        • a set of standards that control the transfer of business data and information among computers both within and among enterprise.


          Extranet
          • a portion of a company's network that allows customers or suppliers of a company to access parts of an enterprise's intranet.


            Web Services
            • allow businesses to create products and B2B interactions over the Internet.


              Document Management System (DMS)
              • allows for storage and management of a company's documents.


                Workflow
                • a defined process that identifies the specific set of steps involved in completing a particular project or business process.


                  Virtual Private Network
                  • allow customers or vendors to connect to company network server in a private network connection.

                  Enterprise hardware allows large organizations to manage and store information and data using devices geared for:
                  • Heavy use
                  • Maximum availability
                  • Maximum efficiency
                  RAID duplicates data and implements duplication in different ways.

                  Network attached storage (NAS) is a server that provides storage to users and information systems attached to the network

                  A storage area network (SAN) is a high-speed network that provides storage to other servers to which it is attached

                  An enterprise storage system is a strategy that focuses on the availability, protection, organization, and backup of storage in a company.

                  A blade server packs a complete computer server on a single card (called a blade) rather than a system unit.

                  A thin client is a small terminal-like computer that mostly relies on a server for data storage and processing


                  Backup Procedures

                  • Full- fastest recovery method. 
                  • Differential
                  • Incremental
                  • Selective
                  • Continuous
                  A disaster recovery plan is a written plan describing the steps a company would take to restore computer operations in the event of a disaster

                  Contains four major components
                  • Emergency plan
                  • Backup plan
                  • Recovery plan
                  • Test plan



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