lecture2 by taminulislam


									Information Systems

     Lecture 2

                 MD. Ahsan – Ul - Hasan
Information Systems Functions

   Five Functions of Information Systems:
       Information Processing and Usability Function
       Educating and Learning Function
       Information systems development Function
       Management and Control Function
       Strategy and Planning Function
Contemporary approaches to Information

   Technical Approach:
     The technical approach to information systems emphasizes
      mathematically based models to study information systems, as well as the
      physical and formal capabilities of these systems. The disciplines that
      contribute to the technical approach are computer science, management
      science, and operations research.
   Behavioural Approach:
     An important part of the information systems field is to concerned with
      behavioural issues that arise in the development and long-term
      maintenance of information systems. Issues such as strategic business
      integration, design, implementation, utilization, and management cannot
      be explored usefully with the models used in the technical approach.
Contemporary approaches to Information

    Socio-technical Systems:
     The combination of the work of computer science, management science
      and operations research with a practical orientation toward developing
      system solutions to real-world problems and managing information
      technology resources. It also concerned with behavioural issues
      surrounding the development, use, and impact of information systems,
      which are typically discussed in the field of sociology, economics, and
Contemporary approaches to Information

                    Computer           Operations
                    Science            research

      Management                                     Sociology
      science                   CoMi

                   Psychology            Economics
Information Systems & Business

      Operational Excellence
      New Products, Services and Business Models
      Customer and Supplier Intimacy
      Improved Decision Making
      Competitive Advantage
      Survival
Information Systems & Business

   Operational Excellence:
                 Information systems and Technologies are some of the most
                 important tools available to managers for achieving higher
                 levels of efficiency and productivity in business operations,
                 especially when coupled with changes in business practices
                 and management behaviour.

   New Products, Services, and Business:
               Information systems and technologies are a major enabling
               tool for firms to create new products and services, entirely
               new business models. A Business model describes how a
               company produces, delivers and sells a product or service to
               create wealth.
Information Systems & Business

   Customer and Supplier Intimacy:
               When a business really knows its customers and serves
               them well, the way they want to be served, the customers
               generally respond by returning and purchasing more. This
               raises revenues and profits.

   Improved Decision Making:
               Information Systems helps organizations managers to make
               right decision when needed.
Information Systems & Business

   Competitive Advantage:
                When firms achieve one or more of these business
                objectives chances are they have already achieved a
                competitive advantage.

   Survival:
                  Business firms invest in information systems and technologies
                  because they are necessities, most of the cases must for
                  doing business.
Benefits of Information Systems

   Facilitates planning :
                  IS improves the quality of plants by providing relevant
                  information for sound decision – making . Due to increase in
                  the size and complexity of organizations, managers have
                  lost personal contact with the scene of operations.

   Minimizes information overload :
                 IS change the larger amount of data in to summarized form
                 and there by avoids the confusion which may arise when
                 managers are flooded with detailed facts.
Benefits of Information Systems

   Encourages Decentralization :
                Decentralization of authority is possibly when there is a
                system for monitoring operations at lower levels. MIS is
                successfully used for measuring performance and making
                necessary change in the organizational plans and

   Co ordination :
                IS facilities integration of specialized activities by keeping
                each department aware of the problem and requirements
                of other departments. It connects all decision centres in the
                organization .
Benefits of Information Systems

   Easier Control :
                IS serves as a link between managerial planning and control.
                It improves the ability of management to evaluate and
                improve performance . The used computers has increased
                the data processing and storage capabilities and reduced
                the cost .

   Others:
                  IS assembles, process , stores , Retrieves , evaluates and
                  Disseminates the information .

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