management information system
Terms
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- Computer information system (CIS)
- An MIS consists of five related components: hardware, software, people, procedures, and databases. The goal of management information systems is to enable managers to make better decisions by providing quality information.
- Context diagram
- The top level of a data flow diagram that acts as a title page and displays the boundaries of the system and displays the external entities that interact with the system.
- Computer ethics
- The concept that all of us have an obligation with respect to data. For example, managers have a responsibility to customers to protect personal data, to collect only data that is truly needed, and to give customers the ability to correct errors in personal data.
- Concatenated key
- In relational databases, a key that consists of more than one column. The columns are combined to yield a unique primary key.
- Computer-aided software engineering (CASE )
- Computer programs that are designed to support the analysis and development of computer systems. They make it easier to create, store, and share diagrams and data definitions. Some versions even generate code. There are two categories of CASE tools: software development and maintenance of existing systems.
- Computer-integrated manufacturing (CIM)
- Using a computer to control most of the production equipment in a manufacturing environment. The computer can monitor the production statistics. It is also used to set individual machine controls.
- Computer-aided design (CAD)
- Programs that are used to create engineering drawings. CAD programs make it easy to modify drawings. They also make it easier to keep track of material specifications. They can perform spatial and engineering estimates on the designs, such as surface or volume calculations.
- Cut, copy, paste
- A common mechanism used to transfer and link data between different software packages. The data to be transferred is marked. When it is cut or copied, it is placed on the clipboard. Switching to the second package, the object is pasted into the appropriate location. Dynamic and static links are specified through options in the "paste special" menu. With the cut option, the original object is deleted. With copy, the original is unchanged.
- Critical success factors
- A limited number of concrete goals that must be met for the organization to be successful. Identifying these key factors helps determine the strategic directions and highlights the areas that can benefit from improved information systems.
- Concurrency
- A situation that arises when applications attempt to modify the same piece of data at the same time. If two people are allowed to make changes to the same piece of data, the computer system must control the order in which it processes the two requests. Mixing the two tasks will result in the wrong data being stored in the computer.
- Converge
- The ability of an iterative model to stabilize on a fixed solution. The alternative is that values continually increase and never reach a solution.