Abstract: A business information management system includes a data connection relationship information storage section storing connection relationships of data items forming a business information database, a data connection accuracy information storage section that stores data connection accuracy between data item pairs having a connection relationship, and a data change section that changes data in the business information database by inputting data thereto. A change affected data extraction section extracts change affected data items by tracing first data items having a connection relationship with an originally changed data item and second data items having a connection relationship with the first data items until there is no connection relationship, a change effect probability calculation section calculates change effect probability of the change affected data based on data connection accuracy, and a change affected data display section displays the change effect probability on a display unit.

Abstract: An optimal portfolio determining method enables high speed determination of objective financial product which optimize availability for institutional buyer or retail investor and purchasing amount on the basis of information relating to earning rate or the like of individual name and information relating to information factors influencing for earning rate, and a system for realizing the method.

Abstract: A business information management system includes a data connection relationship information storage section storing connection relationships of data items forming a business information database, a data connection accuracy information storage section that stores data connection accuracy between data item pairs having a connection relationship, and a data change section that chances data in the business information database by inputting data thereto. A change affected data extraction section extracts chance affected data items by tracing first data items having a connection relationship with an originally chanced data item and second data items having a connection relationship with the first data items until there is no connection relationship, a change effect probability calculation section calculates change effect probability of the change affected data based on data connection accuracy, and a change affected data display section displays the change effect probability on a display unit.

Abstract: An assisting system for pricing products and maintenance/administration service costs is provided which includes: a project data storing section for storing data regarding business contents; a task requirement defining section for decomposition into task units for which risks can be individually assessed based on data regarding contents of the complex total business structure; a cost and risk data storing section for storing cost and risk information regarding tasks to be executed in the business which occur during the term of a contract; a risk type determining section for determining assessing means while correlating respective tasks to be executed in the business which occur during the term of a contract with cost and risk data stored in the cost and risk data storing section; and a total cost and risk assessing section for calculating tasks to be executed in the business which occur during the term of a contract.

Abstract: The system comprises a risk allocation elation display unit that displays the relations between risk allocations of formers and latters, dependent on the decision of the formers and the decision of the latters, and the returns in a multi-dimensional format; and a risk allocation relation selection unit that accepts a user selection entry for one or more relations. The system further comprises an asset value simulation unit allowing a user to enter a management plan change rule, based on a difference between the risk allocation relations and actual relations, for a management plan satisfying the risk allocation relation selected by the user through the risk allocation relation selection unit and that presents an asset value transition that would result when management is done based on the management plan change rule.

Abstract: An optimal portfolio determining method enables high speed determination of objective financial product which optimize availability for institutional buyer or retail investor and purchasing amount on the basis of information relating to earning rate or the like of individual name and information relating to information factors influencing for earning rate, and a system for realizing the method.

Abstract: A resource allocation optimization model includes linear constraints, allocation states of each object represented by 0, 1 variables of which the number is the same as the number of divided regions covering the whole allocation base region and an objective function described as the quadratic summation of resource stacks allocated to each divided region. In an optimizing process, variables having values which are to be changed are iteratively selected by a variable selection rule until it is judged that another variable change can not improve the objective function. The variable selection rule is characterized by using an evaluation index simply evaluating a value change of the objective function, defined by the inner product of a evaluation vector representing the present resource allocation states and a vector of a new resource allocation corresponding to a newly selected variable of a object, and selecting the next variable which minimizes the evaluation index.