计算机专业英文文献翻译

计算机专业英文文献翻译内容摘要：

termine trends in customer buying patterns and forecasting models to predict sales levels.。 Data management:The DSS39。 39。 s data management ponent stores Lands39。 39。 End39。 39。 s customer and product information .In addition to this anizational information , the pany also needs external information ,such as demographic information and industry and style trend trend informatin. User interface management : A user interface enables LandsEnd decision makers to access information and specify the models they want to use to create the information they need. Now w39。 39。 ll examine the three DSS ponents in more general terms. MODEL MANAGEMENT COMPONENT The model management po consists of both the DSS models and the DSS model management system. A model is a representation of some event ,fact,or situation. Businesses use models to represent variables and their example,you would use a statistical model called analysis of variance to determine whether newspaper,television,and billboard advertising are equally effective in increasing sales. DSSs help in various decisionmaking situations by using models that allow you to analyze information in many different ways .The models you use in a DSS depend on the decision you39。 39。 re making and ,consequently,the kind of analysis you example,you would use whatif analysis to see what effect the change of one or more variables will have on other variables,or optimization to fine the most profitable solution given operating restrictons and limited can use spreadsheet software such as Excel to creat a simple DSS for whatif again at Figure for an example of a spreadsheet DSS you might build to cpmpare how much you39。 39。 d pay for a huose at different interest rates and payback periods. The model management system stores and maintains the DSS39。 39。 s function of managing models is similar to that of a database management model management ponent can39。 39。 t select the best model for you to use for a particular problemthat requires your expertisebut it can help you creat and manipulate models quickly and easily. DATA MANAGEMENT COMPONENT The data managment ponent performs the function of storing and maintaining the information that you want your DSS to data managment ponent ,therefore,consists of both the DSS informat。