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Ch 6 - Information and decision support systems 

  • Management Information System: is an information system used for decision-making, and for the coordination, control, analysis, and visualisation of information in an organisation.

    • Provide routine information to managers in the functional areas

    • Provide information in exception reports and ad hoc (demand) reports

    • MIS used to have everything to do with IT and IS, however, it is now used for the report system.

  • MIS Reports Types:

    • Scheduled Reports:

    • Produced periodically, such as daily, weekly, or monthly. For example, a production manager could use a weekly summary report listing total payroll costs to monitor and control labour and job costs.

      • monthly bills are examples of scheduled reports

  • Key-indicator report:

    • Summarises previous day’s critical activities and is available at the beginning of each work day

    • Used by managers and executives to take quick, corrective action on significant aspects of the business

    • summarise inventory levels , production activity, and sales volume.

  • Demand Reports:

    • Demand reports are developed to provide certain information upon request

    • Are produced on demand rather than a schedule

    • Demand report can be generated to provide requested information by querying the company’s database

    • Come from an organisation’s database system. They are generated from the internet or by using cloud computing. The software can also generate useful graphics, including pie charts and bar graphs

  • Exception Reports:

    • Reports that are automatically produced when a situation is unusual or requires management action

    • This report would only contain items with fewer than five days of sales in inventory

  • Drill-down reports:

    • Provide increasingly detailed data about a situation. Analysts can see data at:

      • A high level first (such as sales for the entire company)

      • At a more detailed level (sales for one department of the company)

      • At a very detailed level (sales for one sales representative)

  • Decision Support Systems: a set of related computer programs and the data required to assist with analysis and decision-making within an organisation.

    • Support for problem-solving phases:

      1. Different decision frequencies: One-time: ad hoc DSS Repetitive: institutional DSS

      2. DIfferent Problem Structures: Highly structured vs. semi or unstructured

      3. Support for various decision-making levels: Operational, tactical, strategic

  • DSS model:

  • DSS model

  • Components of a DSS: At the core of a DSS are a database and a model base.

  • The database management system: software that handles the storage, retrieval, and updating of data in a computer system

    • Allows managers and decision makers to perform qualitative analysis on the company’s vast stores of data in databases , data warehouses, and data marts.

    • A data-driven DSS primarily performs qualitative analysis based on the company’s databases

  • The model base: allows managers and decision makers to perform qualitative analysis on both internal and external data

    • A model driven DSS primarily performs mathematical or quantitative analysis

  • Model Management System (MMS): is a component of DSS architecture which provides for the creation, storage, manipulation, and access of models

    • Can coordinate the use of models in a DSS, including financial, statistical analysis, graphical, and project-management models

  • Group Support System

    • A group support system (GSS), or group decision support system and a computerised collaborative work system, consists of most of the elements in a DSS, plus software to provide effective support in group decision-making settings

  • GSS alternative:

    GSS alternative

  • Characteristics of GSS:

    • Special design: Ease of use, Reduction of negative group behaviour

    • Flexibility: parallel communication, decision-making support

    • Anonymous input: automated record keeping

      Characteristics of a GSS

    • Executive support system (ESS): specialised DSS that includes all the hardware, software, data, procedures, and people used to assist senior-level executives within an organisation.

      • ESS, also called Executive Information Systems (EIS), supports decision making of members of the board of directors, who are responsible to stockholders

  • Capabilities of Executive Support Systems:

    • Defining an overall vision

    • Strategic planning

    • Strategic organising and staffing

    • Strategic control

    • Crisis management


DK

Ch 6 - Information and decision support systems 

  • Management Information System: is an information system used for decision-making, and for the coordination, control, analysis, and visualisation of information in an organisation.

    • Provide routine information to managers in the functional areas

    • Provide information in exception reports and ad hoc (demand) reports

    • MIS used to have everything to do with IT and IS, however, it is now used for the report system.

  • MIS Reports Types:

    • Scheduled Reports:

    • Produced periodically, such as daily, weekly, or monthly. For example, a production manager could use a weekly summary report listing total payroll costs to monitor and control labour and job costs.

      • monthly bills are examples of scheduled reports

  • Key-indicator report:

    • Summarises previous day’s critical activities and is available at the beginning of each work day

    • Used by managers and executives to take quick, corrective action on significant aspects of the business

    • summarise inventory levels , production activity, and sales volume.

  • Demand Reports:

    • Demand reports are developed to provide certain information upon request

    • Are produced on demand rather than a schedule

    • Demand report can be generated to provide requested information by querying the company’s database

    • Come from an organisation’s database system. They are generated from the internet or by using cloud computing. The software can also generate useful graphics, including pie charts and bar graphs

  • Exception Reports:

    • Reports that are automatically produced when a situation is unusual or requires management action

    • This report would only contain items with fewer than five days of sales in inventory

  • Drill-down reports:

    • Provide increasingly detailed data about a situation. Analysts can see data at:

      • A high level first (such as sales for the entire company)

      • At a more detailed level (sales for one department of the company)

      • At a very detailed level (sales for one sales representative)

  • Decision Support Systems: a set of related computer programs and the data required to assist with analysis and decision-making within an organisation.

    • Support for problem-solving phases:

      1. Different decision frequencies: One-time: ad hoc DSS Repetitive: institutional DSS

      2. DIfferent Problem Structures: Highly structured vs. semi or unstructured

      3. Support for various decision-making levels: Operational, tactical, strategic

  • DSS model:

  • DSS model

  • Components of a DSS: At the core of a DSS are a database and a model base.

  • The database management system: software that handles the storage, retrieval, and updating of data in a computer system

    • Allows managers and decision makers to perform qualitative analysis on the company’s vast stores of data in databases , data warehouses, and data marts.

    • A data-driven DSS primarily performs qualitative analysis based on the company’s databases

  • The model base: allows managers and decision makers to perform qualitative analysis on both internal and external data

    • A model driven DSS primarily performs mathematical or quantitative analysis

  • Model Management System (MMS): is a component of DSS architecture which provides for the creation, storage, manipulation, and access of models

    • Can coordinate the use of models in a DSS, including financial, statistical analysis, graphical, and project-management models

  • Group Support System

    • A group support system (GSS), or group decision support system and a computerised collaborative work system, consists of most of the elements in a DSS, plus software to provide effective support in group decision-making settings

  • GSS alternative:

    GSS alternative

  • Characteristics of GSS:

    • Special design: Ease of use, Reduction of negative group behaviour

    • Flexibility: parallel communication, decision-making support

    • Anonymous input: automated record keeping

      Characteristics of a GSS

    • Executive support system (ESS): specialised DSS that includes all the hardware, software, data, procedures, and people used to assist senior-level executives within an organisation.

      • ESS, also called Executive Information Systems (EIS), supports decision making of members of the board of directors, who are responsible to stockholders

  • Capabilities of Executive Support Systems:

    • Defining an overall vision

    • Strategic planning

    • Strategic organising and staffing

    • Strategic control

    • Crisis management