DSS is basically a further development of computerized management information system, which is designed such that it is interactive with the user. The interactive nature required to facilitate the integration between the various components in the decision-making process, such as procedures, policies, analytical techniques, as well as managerial experience and insight in order to establish a framework that is flexible decision (Suryadi and Ramdhani, 1998). DSS is different with other information systems (Turban, 2005).

Some of the characteristics that distinguish there are:
  1. DSS is designed to help decision makers in solving its problems in a structured or unstructured
  2. In the treatment process, DSS combines the use of models / techniques of analysis by conventional techniques of data entry and search functions / interrogation information
  3. DSS is designed such that it can be used / operated easily by people who do not have the capability of computer operation. Therefore, the approach used is usually interactive model
  4. DSS is designed with emphasis on the flexibility and adaptability. So easily adapted to a variety of environmental changes that occur and the user's needs
The advantages of DSS
With a variety of special characters such as noted above, CMS can provide a variety of benefits or advantages to the wearer (Turban, 2005).
Advantages in question are:
  1. SPK expand the ability to make decisions in the process data / information for users
  2. DSS helps decision-making in terms of saving time needed to solve problems especially the problems are very complex and unstructured
  3. DSS can produce solutions with faster and reliable results
  4. Although an excellent DSS in its design, may not be able to solve the problems faced by decision-makers, but the results of the DSS can be a stimulant for decision makers in understanding the problem. Because of a DSS can provide various alternatives
  5. DSS can provide additional evidence to justify so as to strengthen the position of decision makers
Limitations of DSS
Besides the various advantages and benefits as noted above, DSS also has some limitations (Daihani, 2001), which are:
  1. There are several management capabilities and human talent that can not be modeled, so that the existing models in the system do not all reflect the actual problem
  2. The ability of a DSS is limited to its treasury of knowledge (knowledge base and basic model)
  3. The processes can be carried out by DSS usually depends also on the ability of the software it uses
  4. DSS does not have the ability to intuition as that of humans. Because however sophisticated the DSS, DSS is just a collection of hardware, software and systems that operate it are not equipped with the ability to think
However, it must be remembered that the DSS not emphasized to make a decision. With a set of abilities to process information / data that will be needed in the decision-making process, the system only works as a management tool. So the system is not intended to replace the function of decision makers in making decisions in carrying out its duties (Daihani, 2001).

Broadly, it can be said that the DSS is designed to produce a wide range of alternatives offered to decision-makers in their duties. Because most of the decision making process is the formulation of the problem and the search for alternatives has been done by the system, it is expected that the manager will be faster and more accurate in dealing with his problems.

So, in general it can be said that the decision support system provides benefits to management in improving the effectiveness and efficiency of its work, especially in the decision-making process (Daihani, 2001).