决策支持系统(DSS)是一种交互式的、灵活的基于计算机的信息系统或子系统,旨在帮助决策者使用通信技术、数据、文档来识别和解决问题,完成决策过程任务并做出决策。
管理信息系统(MIS)由以下三个支柱组成:管理、信息和系统。这些解释如下。
- 管理:通过正式组织的团体中的人并与人一起完成事情的艺术。
- 信息:具有上下文意义的数据,其中数据是关于实体的原始事实(实体是感兴趣的对象)。
- 系统:一组具有明确定义边界的相互关联的组件,它们协同工作以实现共同目标。
管理信息系统 (MIS)是一种基于计算机的系统,可为具有类似需求的用户提供信息。
管理信息系统(MIS)和决策支持系统(DSS)的区别:
PARAMETER | MIS(MANAGEMENT INFORMATION SYSTEM) | DSS(DECISION SUPPORT SYSTEM) |
---|---|---|
1. Main task | Identifies information requirement. | Develop certain tools for using decision process. |
2. Main stress | Main stress is on efficiency. | Main stress is on effectiveness. |
3. Type of database used | Uses corporate database. | Uses special database. |
4. Data related task | Data storage is of great importance | Main emphasis is on data manipulation |
5. Dependency on | Very much dependent on computer | dependent on management judgement. |
6. Access to data | Indirect access of data by provided | Management enjoys direct access |
7. Principal use | Principal use is control | Principal use is planning, staffing, decision making. |
8. Created/developed by | Constructed by vendors or information specialists | Created by users alone or with specialists. |
9. Types of users | Middle level, lower level, sometimes senior executive | Analysts, professionals, managers. |
10. Main focus | Focuses on information processing. | Focuses on decision support, analysis. |