Download

The current version of DEXiWin is 1.2 (build 1.2.0.2, released 2024-10-25).

• DEXiWin_1.2.0.2.msi: MSI installer for Windows.
• DEXiWin_1.2.0.2.zip: Portable zip archive. Just unpack to some folder and run DEXiWin.exe.
• Examples of DEXi models

Please see DEXiWin Versions for the change log and previous versions of the software.

User's Manual

Bohanec, M.: DEXiWin: DEX Decision Modeling Software, User’s Manual, Version 1.2. IJS Report DP-14747, Jožef Stefan Institute, Ljubljana, 2024.

Functionality

DEXiWin implements a graphical user interface over the core DEXi modelling library DEXiLibrary. DEXiWin supports the following functionality:

• Developing DEXi models, i.e., creating and editing DEXi models and their components:
  • Attributes: variables that represent decision subproblems and properties, observed at decision alternatives.
  • Tree of attributes: a hierarchical structure representing the decomposition of the decision problem.
  • Scales: discrete and continuous scales that define admissible values that can be assigned to attributes.
  • Aggregation functions: functions that define the aggregation of attributes from bottom to the top of the tree of attributes.
• Evaluation and analysis of decision alternatives:
  • Creation and editing of alternatives and their values assigned to individual attributes.
  • Evaluation of alternatives: a bottom up aggregation of alternatives's values in accordance with model structure and defined aggregation functions.
  • Analysis of alternatives: what-if analysis, selective explanation, comparison of alternatives, "plus-minus" analysis, target analysis.
• User interface and input/output features:
  • Loading and saving DEXi models in the native XML format (.dxi files);
  • Copying, pasting, importing and exporting DEXi models and their parts in various formats: Json, tab-delimited and CSV (Comma-Separated Value).
  • Reporting: creating, combining, displaying and exporting various reports.
  • Charts: creating and displaying various customizable charts.
  • Tree graphic view: graphic display of model structure.

Compatibility

DEXiWin is backward compatible with DEXi. It implements all DEXi's features, except loading and saving DEXi models in obsolete data formats (.dax and pre-2000 .xml). DEXiWin can read and process .dxi files produced by DEXi. Furthermore, if no new features introduced in DEXi Suite have been used, DEXiWin writes .dxi files that are readable by DEXi, however, the new features might be ignored in DEXi.

In comparison with DEXi, DEXiWin introduces several new features:

• DEXiWin supports all DEX method extensions introduced in DEXi Suite.
• Supporting Qualitative-Quantitative (QQ) evaluation for ranking alternatives within qualitative classes.
• Additional features for handling decision rules: considering symmetricity, marginal values, representation using decision trees, graphical interpretation using linear functions, multilinear interpolation and QQ evaluation.
• "Plus-minus-1" analysis is generalized to "Plus-Minus-any_value" analysis
• Added new report types, facilitating a flexible composition of reports.
• Added new chart types. Some of the old ones have been redesigned and extended, too.
• Implemented many small, but important improvements in the user inteface, for instance displaying model components in user-selectable columns, tree-structured display/editing of evaluation results, consistent use of colors for displaying "good" and "bad" values, etc.
• Incorporated the functionality of DEXiTree under View/Tree graphic.
• Most user-defined settings are now remembered in .dxi files.