Objectives:-
*Discuss the special information requirements of an enterprise- sized corporation.
*Identify information systems and software used in the functional units of an enterprise.
*Describe and list general purpose and integrated information systems used throughout an enterprise.
*Describe and list types of technologies used throughout an enterprise.
*Describe virtualization, cloud computing, and grid computing.
*Discuss the computer hardware needs and solutions for an enterprise.
*Discuss high availability, scalability, and interoperability.
*Determine why computer backup is important and how it is accomplished.
*Discuss the steps in a disaster recovery plan.
Enterprise Computing:-
>Enterprise computing involves the use of computers in networks, such as LANs and WANs, or a series of interconnected networks that encompass a variety of different operating systems, protocols, and network architectures.
*Retail.
*Manufacturing.
*Service.
*Wholesale.
*Government.
*Educational.
*Transportation.
>In an enterprise, users typically fall into one of four categories
>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 -> Organizing -> Leading -> Controlling.
Information System in the Enterprise:-
>An information system is a set of hardware, software, data, people, and procedures that work together to produce information.
>Accounting software manages everyday transactions
Billing software helps the company reconcile purchases with customer payments.
>Financial software helps managers budget, forecast, and analyze.
>A human resources information system (HRIS) manages one or more human resources functions.
>Employee relationship management systems manage communication between employees and the business.
>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.
>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.
>Sales force automation (SFA) software equips traveling sales people with the electronic tools they need to be more productive.
>Customer interaction management (CIM) software manages the day-to-day interactions with customers.
Enterprise-Wide Technologies and Methodologies:-
>Some technologies used in enterprises include:-
*Portals.
*Data warehouses.
*Electronic data interchange.
*Extranets.
*Web services.
*Document management systems.
*Workflow.
*Virtual private networks.
>A portal is a collection of links, content, and services presented on a Web page that are interesting for a particular job function.
>A data warehouse is a huge database that stores and manages the data required to analyze historical and current transactions.
>Web services allow businesses to create products and B2B interactions over the Internet.
>In a service-oriented architecture, information systems provide services to other information systems in a well-defined manner over a network.
>A document management system (DMS) allows for storage and management of a company’s documents.
*stored in a repository.
>A workflow is a defined process that identifies the specific set of steps involved in completing a particular project or business process.
>A virtual private network (VPN) provides mobile users, vendors, and customers with a secure connection to the company network server.
Virtualization and Cloud Computing:-
>Server virtualization
*Provides the capability to divide a physical server logically into many virtual servers.
>Storage virtualization
*Provides the capability to create a single logical storage device from many physical storage devices.
>Cloud computing is an Internet service that provides computing needs to computer users.
E-Commerce:-
Enterprise Hardware:-
>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.
>Goal is to consolidate storage.
High Availability,Scalability and Interoperability:-
>A high-availability system continues running and performing tasks for at least 99 percent of the time.
>Scalability is a measure of how well computer hardware, software, or an information system can grow to meet increasing performance demands.
>Interoperability is the ability for an information system to share information with other information systems within an enterprise.
Summary:-
*Special computing requirements present in an enterprise-sized organization.
*Various types of users within an organization.
*Large information systems.
*Benefits of virtualization and cloud computing.
*Requirements for enterprise hardware.
*Backup procedures present in a large organization.
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