Luan 2024
Luan 2024
Abstract—Simulation technology is a comprehensive method complex systems by setting initial conditions, parameters and
for predicting possible outcomes or evaluating decision-making rules, so as to predict possible results or evaluate the effects of
effects by establishing computer models of complex systems and different decision-making schemes [1]. It is a comprehensive
simulating their behavior and evolution processes. This paper
systematically reviews the development history, main methods, method that combines qualitative analysis with quantitative
application fields, challenges, and future trends of simulation calculation, and integrates expert knowledge with data-driven
technology. Firstly, the article defines the connotation of simu- approaches [2]. The core of simulation technology is to
lation technology and expounds its important value in military, establish a model that can reflect the key characteristics of
business, public policy, and other fields. Secondly, the article the real system. By adjusting the parameters and variables
traces the development of simulation technology from its origins
in World War II to the present, summarizing key milestones of the model, simulation data under different scenarios are
such as modeling languages, graphical interfaces, distributed generated to analyze the response of the system to changes
interaction, and cloud computing. Thirdly, the article introduces in internal and external factors, assess risks and uncertainties,
the main modeling paradigms, such as system dynamics, discrete and provide decision makers with visualized and interpretable
events, and agents, as well as compound modeling methods predictions and decision support [3]. Simulation technology
like continuous-discrete hybrid and multi-agent-macro hybrid.
Meanwhile, the article also demonstrates typical applications plays an indispensable role in many fields. In the military do-
of simulation in defense, business, government, engineering, main, simulation technology is widely used for weapon equip-
healthcare, and other fields, using case studies in military oper- ment demonstration, combat plan evaluation, force deployment
ations, consumer markets, macroeconomics, traffic management, planning, etc., and is the core means of military strategy and
and disease spread. Based on an analysis of existing technical command [4]. In the business domain, simulation technology
challenges, practical dilemmas, and methodological controver-
sies, the article finally outlines the development prospects of can help enterprises forecast market demand, assess investment
simulation technology in the directions of large-scale high- risks, optimize supply chain and production processes, and
performance computing, data-driven modeling, human-computer improve operational efficiency and economic benefits [5]. In
hybrid, cognitive-behavioral simulation, and cross-domain cou- the field of public policy, simulation technology provides a
pling. The article points out that simulation is accelerating its scientific basis for policy formulation and evaluation, such as
integration with artificial intelligence, big data, digital twins,
and other technologies, evolving towards more intelligent, real- population forecasting, transportation planning, environmental
time, and immersive directions, and will become an indispensable impact assessment, and health emergency decision-making
enabling technology in the digital era. Strengthening theoretical [6]. In addition, simulation technology has extensive and in-
innovation and application expansion of simulation is of great depth applications in financial risk management, engineering
significance for enhancing national scientific and technological design verification, artificial intelligence algorithm testing,
strength and comprehensive competitiveness.
Index Terms—Simulation technology, Modeling and simula- social science research and other fields [7]. With the rapid
tion, Artificial intelligence, Digital twin, Hybrid modeling development of computer technology and data science, sim-
ulation technology is becoming an increasingly powerful and
I. I NTRODUCTION universal analysis tool.
Simulation technology is a method of predicting future
III. T HE I MPORTANCE AND A PPLICATION F IELDS OF
results by simulating real-world systems, processes or events.
S IMULATION T ECHNOLOGY
It has wide applications in military, business, public policy
and other fields, and is an important tool for decision support Simulation technology plays an indispensable role in many
and risk assessment. This paper will comprehensively review fields. In the military field, simulation technology is widely
the development history, main methods, application examples, used in weapon equipment demonstration, combat plan evalua-
challenges and future trends of simulation technology. tion, force deployment planning, etc., and is a core component
of military operations research [4]. In the business field,
II. D EFINITION OF S IMULATION T ECHNOLOGY simulation technology can help enterprises forecast market
Simulation technology refers to the use of computer models demand, assess investment risks, optimize supply chain and
and simulation tools to simulate the behavior and evolution of production processes, and improve operational efficiency and
economic benefits [5]. In the field of public policy, simulation object-oriented simulation languages, simulation applications
technology provides a scientific basis for the formulation in various industries continued to deepen [12].
and evaluation of policies, such as population forecasting,
transportation planning, environmental impact assessment, and B. Recent Advances and Milestone Events
health emergency decision-making [6]. In addition, simulation Since 2014, simulation technology has entered a stage
technology has extensive and in-depth applications in financial of rapid development driven by new-generation information
risk management, engineering design verification, artificial technologies. Table I summarizes the milestone events in
intelligence algorithm testing, social science research and other this period. These milestone events reflect the accelerated
fields [7]. With the rapid development of computer technol-
ogy and data science, simulation technology is becoming an TABLE I
increasingly powerful and universal analysis tool. I MPORTANT MILESTONES IN THE DEVELOPMENT OF SIMULATION
TECHNOLOGY
As shown in Figure 1, the main application fields and
examples of simulation technology are presented. Year Milestone Events
2014 US DARPA launched the DDDAS project, promoting the fusion
of simulation and big data [20].
2015 Alibaba’s “Tao” digital twin warehouse simulation system
launched, a benchmark for industrial simulation [21].
2016 AlphaGo defeated top human Go players, showing the potential
of deep reinforcement learning in complex simulations [16].
2017 Gartner listed digital twin as a top ten strategic technology trend,
indicating the convergence of IoT, big data and simulation [22].
2018 AWS launched the SageMaker RL cloud platform, reducing the
threshold for developing and deploying reinforcement learning
applications [23].
2019 IEEE approved the P2807 digital twin system framework stan-
dard project, accelerating the standardization process [24].
2020 The COVID-19 pandemic promoted large-scale application of
computational epidemiology models in public health decisions
[25].
2021 MITRE proposed the ASGS (Actionable Simulation Guidance
System) framework, enhancing the interpretability and trustwor-
thiness of simulation [26].
2022 Shanghai launched a city-level digital twin CIM platform,
integrating simulation, monitoring and intelligent applications
[27].
2023 NVIDIA released the Omniverse platform, providing a founda-
tion for the industrial metaverse based on physically-accurate
simulation and AI [28].
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However, they are often difficult to finely describe the complex the susceptible-infected-recovered transition of the population
interactions within the system, and have limited descriptive [36].
power for systems involving intelligent behavioral subjects [?]. Simulation systems with hybrid paradigms have high mod-
eling flexibility and fine-grained multi-scale mapping, but
B. Modern Simulation Technology the complexity and computational cost of modeling increase
Modern simulation technology mainly refers to a series accordingly. Constructing a reasonable conceptual framework
of methods based on computers and integrating cutting- to coordinate the semantic interoperability of heterogeneous
edge achievements in fields such as artificial intelligence and models is a challenging problem faced by hybrid modeling
complexity science. Among them, the individual modeling [54].
and simulation method represented by agent-based modeling
VI. A PPLICATION E XAMPLES OF S IMULATION
(ABM) has injected new vitality into simulation. ABM gen-
T ECHNOLOGY
erates the emergent behavior of the system from the micro-
interactions of a large number of heterogeneous intelligent A. Military and Strategic Planning
agents, and can model complex adaptive systems that tradi- The military is the earliest, widest and most in-depth
tional methods are difficult to describe [?]. For example, in application field of simulation. The DMSO (Defense Modeling
financial market simulation, ABM can simulate the game of & Simulation Office) under the U.S. Department of Defense
investors with different trading strategies and its impact on is specifically responsible for military simulation construction,
market stability [48]. In traffic flow simulation, ABM can and has developed a series of large-scale simulation systems
study the self-organizing behavior of vehicles and pedestrians and key technologies [?]. In recent years, the application of
in road networks [29]. Artificial intelligence technology is simulation systems has expanded from campaigns and tactics
another important driving force for modern simulation. Various to military system demonstration, equipment development
machine learning algorithms are used for behavioral modeling, demonstration, situation assessment, command information
environment perception and decision-making of simulation systems, etc. Figure 2 shows the Gantt chart of the Peninsula
agents, making simulation more intelligent [?]. Reinforcement
learning allows agents to learn optimal strategies through
continuous trial and error [33]. Deep learning enables agents
to handle high-dimensional perception data, such as learning
to understand battlefield images [47]. Knowledge graphs and
causal reasoning allow agents to make reasonable decisions Fig. 2. The Peninsula War simulation is a typical case of the U.S. military
based on domain knowledge [39]. In addition, evolutionary conducting joint combat simulation analysis [?]. The simulation integrates
high-resolution models of multiple services such as land, sea, air, and space,
computation, swarm intelligence and other methods have also constructs a refined battlefield environment of the Korean Peninsula and its
been applied in military and socio-economic system modeling surroundings, and sets up multiple confrontation plans for Red and Blue.
[34]. Through more than 100,000 simulations, the effect evaluation of different
dx dy military action combinations was analyzed, the force deployment and re-
= ky(t) − αx(t) = kx(t) − βy(t) (1) source allocation were optimized, and potential tactical insights were studied,
dt dt providing strong support for the planning and decision-making of theater
Equation 1: Lanchester’s square law equations, describing the commanders.
attrition rate of combat forces x(t) and y(t) on both sides War simulation project plan.
C. Hybrid Simulation Methods B. Business and Market Forecasting
Hybrid simulation methods refer to integrating multiple In the business field, simulation technology is widely used
heterogeneous modeling and simulation paradigms within a in supply chain management, production scheduling, mar-
unified framework, leveraging their respective strengths to ket forecasting and other aspects. Agent-based modeling is
describe complex systems at multiple levels and dimensions. particularly suitable for simulating the complex interactions
Typical hybrid simulation methods include: and adaptive behaviors among the many participants in the
(1) Continuous-discrete hybrid simulation, that is, a model market. Procter & Gamble (P&G) has developed an agent-
contains both continuous processes and discrete events, such based consumer market simulation system [29]. The system
as the coexistence of continuous material flow and discrete builds an artificial market space, and creates virtual consumers,
events such as equipment failures on a production line [40]; retailers, competitors and other agents. Each consumer agent
(2) System dynamics-discrete event hybrid simulation, the has its own demographic attributes, psychological preferences,
former depicts the overall structure and feedback loops of the social networks and behavioral rules. They perceive product
system, while the latter describes local processes, such as the information, exchange experiences, and make purchase deci-
macroscopic operation of the supply chain and the microscopic sions in the market environment. By adjusting product, price,
simulation of order processing [?]; channel and promotion strategies, P&G simulated the market
(3) ABM-macro modeling hybrid simulation, such as in response, forecasted demand, optimized marketing mix, and
disease transmission models, ABM depicts individual con- supported new product development decisions. The accuracy
tact behavior, while macro differential equations describe of the simulation prediction once reached 90%.
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of cloud computing, big data, blockchain and other new will become an indispensable tool for humanity’s ability to
infrastructure will provide strong computing, data and credible understand and shape the world around us. Therefore, strength-
support for the implementation of simulation applications [46]. ening the research on the theory and methods of simulation
technology, promoting the development and application of
B. Application Field Expansion simulation technology, is of great significance for enhancing
In the future, simulation technology will be more widely the country’s scientific and technological innovation capability
used in more fields. In the military field, with the develop- and comprehensive national strength.
ment of intelligent warfare, simulation will penetrate into the
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