# Systematic Nomination of COVID-19 Quarantine Facilities
###### Abstract
Practitioners divide MCDMs into two multi-attribute decision-making (MADM) and multi-objective decision-making (MODM) categories. [PERSON] et al. [8] explain MADMs focus on problems with discrete decision spaces, and they are in practice connected with issues where a set of decision options exist. The decision-maker must prioritize or select a limited number of options. On the other hand, MODMs naturally involve several competing objectives that must be adapted synchronously, but they may be connected with situations in which the decision options are not predefined. In fact, MCDMs offer the particular benefit of utilizing many criteria or characteristics to produce a unified statement outcome, even with conflicting decision objectives [9]. MCDMs in complex situations perform better with a panel of decision-making [10; 11], even if a group with unbalanced expertise needs to be utilized [11]. This is called group MCDM. Besides, in dealing with decision-making uncertainties, the Fuzzy MCDM is suggested to be used to assess the synthetic performance for the wisest choice alternative solutions, in order to manage subjective and qualitative criteria that are impossible to articulate in discrete values or are with some uncertainty, thus strengthening the generalisability and rationality of the decision-making methodology [12]. Additionally, multiple actors were also given attention in the subsequent development of MCDMs, which was seen to be crucial in its progress. This was later referred to as multi-actor multi-criteria analysis (MAMCA) [13]. In MAMCA perspectives of different stakeholders should be included in the decision-making mechanism. As a result, for a better outcome, committees composed of at least government representatives, hospitality specialists, scientists, and medical professionals, and psychologists may even be proposed to balance and integrate the various dimensions for dealing with the quarantine facilities selection issue. Hence, fuzzy group MAMCDA (including both MODM and MADM viewpoints) might be capable of proposing the closest facility selection outcome to the ideal. Figure 2 is an improved version of Figure 1 to show a hierarchical structure of the formulated MAMCDA with n panels of actor (where each panel may have different group members, like A, B, C, etc.). Figure 1: Hierarchical structure of MCDMs. However, because of the nature of this essay, practitioners should perform a supplementary investigation in order to select an accurate technique. An MCDM-related method choice may be influenced by accessible data, decision-making mechanisms, acceptable uncertainty, or other considerations [14]. Nonetheless, a lighter version with the inclusion of the most essential objective, but multi-alternative group decision-making, gives a more user-friendly decision-making process for an urgent decision like quarantine facility selection. MADM methods, such as TOPSIS, VIKOR, ELECTRE, SAW [9], use a trustable systematic procedure of decision-making for rating quarantine facilities while considering a set of defined criteria. The chief objective of the nomination of quarantine facilities is assumed to be the minimization of COVID-19 infection transmission. Within the above approach, and based on the availability of experts, countries may choose their MADM method that relates to systematically assessing and listing preferential hotels for quarantine purposes. Using MADM methods for decision-making, as explained by [PERSON] et al. [3], typically consists of a few major phases, however, in practice, these phases may not be in this sequence or may crossover. The initial phase is deciding on criteria. This step is a crucial and complicated qualitative process of gathering and setting the criteria that have a particular influence on the nomination of quarantine facilities. Besides, in the second phase, for using MADM methods, governments may announce their facility selection criteria for public awareness. Moreover, all available/alternative hotels and facilities need to be listed.