Decision Support System (DSS) is a system capable of providing problem-solving ability and the ability of communicating to problems with the condition of semi-structured and unstructured. This system is used to assist decision-making in situations of semi-structured and unstructured situations, where no one knows for sure how the decision should be made (Turban, 2001).
DSS aims to provide information, guide, provide predictions and lead to user information in order to make better decisions.
DSS is an implementation of the theories of decision making that has been introduced by sciences such as operations research and menegement science, only difference is that if the first to find a solution to the problems faced to be done calculation iteration manually (usually to find the minimum, maximum, or optimum), the current computer PC has offered the ability to solve the same problem in a relatively short time.
Decision Support System implementation of the concept in the world of work, this time taken by the authors is the application of Business Intelligence in data collection and presentation of data in a form of Dashboard. Industry companies that serve as an example is the airline or the airline industry.
Technology application used is a web-based application system, and can be accessed at a specific URL on the PC / laptop / tablet users with the minimum capacity, whenever and wherever the user is located.
Methodologies, processes and tools Business Intelligence or BI reporting are the key components that provide data analysis, reporting and monitoring of the rich to the users of the system.
Broadly speaking, the process that occurs less is as depicted in the diagram below, in which;
System will collect all the data both master data and transaction data from any application that is used all the departments within the company, for later analysis What-if hanging from the report what is desired by the management.
Results of the analysis will determine what decisions should be taken by management.
Seen below, the various departments to access, among others Personnel (Human Resources / HR), Finance (Accounting), Production / Operations, Marketing / Marketing, Distribution / Delivery, as well as other divisions, which in turn is under the management of the company.
Reporting that want to be seen by the level manager in the management of the company will be featured in an interactive dashboard applications and can be customized as desired user / user application. Examples of the dashboard is as below.
Previously, keep in mind that the application dashboard also has a variety of categories per division, with each division / department within a company typically uses different data types, and access data in different ways. Reports and results of analysis required automatic also differ, as well as the necessary reporting forms for each division, as illustrated in the diagram below.
It is important to note that the Decision support system (DSS)does not have a specific model received or used throughout the world. Many theories DSS implemented, so there are many ways to classify DSS. 1. DSS passive model is a model that simply collect data and organize it effectively, it usually does not provide a specific decision, and only displays the data. An active DSS in fact actually process the data and explicitly demonstrate a variety of solutions based on the data.
2. DSS active models otherwise process the data and explicitly demonstrate solutions based on the data obtained, although it should be remembered that the human intervention on the data can not be denied again. For example, the data is dirty or junk data, it would generate gross output as well (garbage in garbage out).
3. DSS cooperative if the data is collected, analyzed and then given to the man who helped the system to revise or correct it.
4. Model Driven DSS is a type in which the decision makers using statistical simulations or financial models to produce a solution or strategy without having intensive to collect data.
5. Communications Driven DSS is a type of DSS that many Atua methods combined with other applications, to produce a series of decisions, solutions or strategies.
6. Data Driven DSS emphasize the collection of data which is then manipulated to suit the needs of decision makers, can be external and internal data Atua has a variety of formats. It is vital that the data collected and classified sequentially, for example, daily sales data, operating budgets from one period to another, the inventory in the previous year, and so on.
7. Document Driven DSS use a variety of documents in various forms such as text documents, excel, and recording of data bases, to produce decisions and strategies of manipulation of data.
8. Knowledge Driven DSS is a type of DSS that uses certain rules that are stored in the computer, which is used by humans to determine whether the decision should be taken. For example, limit stops on the trade exchange is a model of knowledge-driven DSS.
In general, Decision Support System developed by the three major components, namely database management, Base Model and Software System / User Interface. DSS component can be described as shown below.
Component of Decision Support Systems (DSS)
a. Database Management
Is a subsystem of data organized in a database. Data that is a decision support system may come from outside and within the environment. For the purposes of SPK, the necessary data relevant to the problem to be solved through simulation.
b. Model Base
Is a model that represents the problem into a format quantitative (mathematical model as an example) as the basis of simulations or decision-making, including the purpose of permaslahan (objective), related components, limitations exist (constraints), and related matters Other. Base Model enables decision makers to analyze as a whole by developing and comparing alternative solutions.
c. User Interphase / Management Dialog
Sometimes referred to as a subsystem of dialogue, a merger between the two previous components, namely Database Management and Model Base incorporated in the third component (user interface), having previously presented in the form of computer models that understandable. User Interface display system output to the user and receive input from the user into the Decision Support System.
