Decision-making software (DM software) is

software Software consists of computer programs that instruct the Execution (computing), execution of a computer. Software also includes design documents and specifications. The history of software is closely tied to the development of digital comput ...

for computer applications that help individuals and organisations make choices and take decisions, typically by ranking, prioritizing or choosing from a number of options. An early example of DM software was described in 1973.Dyer, JS (1973), "A time-sharing computer program for the solution of the multiple criteria problem", ''Management Science'', 19: 1379-83.Wallenius, J, Dyer, JS, Fishburn, PC, Steuer, RE, Zionts, S and Deb, K (1992), "Multiple criteria decision making, multiattribute utility theory: The next ten years", ''Management Science'', 38: 645-54. Before the advent of the

World Wide Web The World Wide Web (WWW or simply the Web) is an information system that enables Content (media), content sharing over the Internet through user-friendly ways meant to appeal to users beyond Information technology, IT specialists and hobbyis ...

, most DM software was spreadsheet-based, with the first web-based DM software appearing in the mid-1990s.Koksalan, M, Wallenius, J, and Zionts, S, ''Multiple Criteria Decision Making: From Early History to the 21st Century'', World Scientific Publishing: Singapore, 2011. Nowadays, many DM software products (mostly web-based) are availableWeistroffer, HR, and Li, Y, "Multiple criteria decision analysis software", Ch 29 in: Greco, S, Ehrgott, M and Figueira, J, eds, ''Multiple Criteria Decision Analysis: State of the Art Surveys Series'', Springer: New York, 2016.Oleson, S (2016)
"Decision analysis software survey"
''OR/MS Today'' 43(5).Amoyal, J (2018)
"Decision analysis software survey"
''OR/MS Today'' 45(5). – e.g. see the comparison table below. Most DM software focuses on ranking, prioritizing or choosing from among alternatives characterized on multiple criteria or attributes. Thus most DM software is based on

decision analysis Decision analysis (DA) is the Academic discipline, discipline comprising the philosophy, methodology, and professional practice necessary to address important Decision making, decisions in a formal manner. Decision analysis includes many procedures ...

, usually multi-criteria decision-making, and so is often referred to as "decision analysis" or "multi-criteria decision-making" software – commonly shortened to "decision-making software". Some decision support systems include a DM software component.

Purpose

DM software can assist decision-makers "at various stages of the decision-making process, including problem exploration and formulation, identification of decision alternatives and solution constraints, structuring of preferences, and tradeoff judgements." The purpose of DM software is to support the analysis involved at these various stages of the decision-making process, not to replace it. DM software "should be used to support the process, not as the driving or dominating force."Belton, V, and Stewart, TJ, ''Multiple Criteria Decision Analysis: An Integrated Approach'', Kluwer: Boston, 2002. DM software frees users "from the technical implementation details f the decision-making method employed allowing them to focus on the fundamental value judgements". Nonetheless, DM software should not be employed blindly. "Before using a software, it is necessary to have a sound knowledge of the adopted methodology and of the decision problem at hand."Figueira, J, Greco, S and Ehrgott, M, "Introduction", Ch 1 in: Figueira, J, Greco, S and Ehrgott, M, eds, ''Multiple Criteria Decision Analysis: State of the Art Surveys Series'', Springer: New York, 2005.

Methods and features

Decision-making methods

As mentioned earlier, most DM software is based on multi-criteria decision making (MCDM). MCDM involves evaluating and combining alternatives' characteristics on two or more criteria or attributes in order to rank, prioritize or choose from among the alternatives.Wallenius, J, Dyer, JS, Fishburn, PC, Steuer, RE, Zionts, S and Deb, K (2008), "Multiple criteria decision making, multiattribute utility theory: Recent accomplishments and what lies ahead", ''Management Science'' 54: 1336-49. There is currently a great deal of interest in quantitative methods for decision making. Many decision analysts argue for multi-attribute

as the gold standard to which other methods should be compared, based on its rigorous axiomatic basis. Some other MCDM methods include: * Aggregated Indices Randomization Method (AIRM) *

Analytic Hierarchy Process In the theory of decision making, the analytic hierarchy process (AHP), also analytical hierarchy process, is a structured technique for organizing and analyzing MCDA, complex decisions, based on mathematics and psychology. It was developed by ...

(AHP) * Analytic network process (ANP, an extension of AHP) * DEX (Decision EXpert) * Elimination and Choice Expressing Reality (ELECTRE) *

Measuring Attractiveness by a Categorical Based Evaluation Technique (MACBETH) Measurement is the quantification (science), quantification of variable and attribute (research), attributes of an object or event, which can be used to compare with other objects or events. In other words, measurement is a process of determini ...

* Multi-attribute global inference of quality (MAGIQ) * Potentially All Pairwise RanKings of all possible Alternatives (PAPRIKA) * Preference Ranking Organization Method for Enrichment Evaluation (PROMETHEE) * Evidential reasoning approach for MCDM under hybrid uncertainty There are significant differences between these methods and, accordingly, the DM software implementing them. Such differences include: :# The extent to which the decision problem is broken into a

hierarchy A hierarchy (from Ancient Greek, Greek: , from , 'president of sacred rites') is an arrangement of items (objects, names, values, categories, etc.) that are represented as being "above", "below", or "at the same level as" one another. Hierarchy ...

of sub-problems; :# Whether or not pairwise comparisons of alternatives and/or criteria are used to elicit decision-makers' preferences; :# The use of interval scale or ratio scale measurements of decision-makers' preferences; :# The number of criteria included; :# The number of alternatives evaluated, ranging from a few (finite) to infinite; :# The extent to which numerical scores are used to value and/or rank alternatives; :# The extent to which incomplete rankings (relative to complete rankings) of alternatives are produced; :# The extent to which uncertainty is modeled and analyzed.

Software features

In the process of helping decision-makers to rank, prioritize or choose from among alternatives, DM software products often include a variety of features and tools; common examples include: * Pairwise comparison * Sensitivity analysis *Group evaluation (teamwork) *Web-based implementation

Comparison of decision-making software

DM software includes the following notable examples. A good summary of the capabilities of various software packages is available in th
Decision Analysis Software Survey
conducted by the Institute for Operations Research and the Management Sciences (INFORMS). The software packages listed in the survey range from free to commercial or enterprise-level packages.

References