A Modelica library for modeling and simulation of dynamical systems in the social sciences, such as business, economics, and ecology, using the system dynamics approach. The term "Business Simulation" is used in a broad sense, as modeling in these domains is concerned with control, decision making, and management of resources.

The BSL adopts the widely recognized System Dynamics approach and modeling paradigm introduced by Jay W. Forrester. System dynamics provides a versatile, foundational modeling framework, ideally suited for modeling, simulating, and analyzing strategic business or public policy issues.

Unlike existing aproaches, the BSL utilizes Modelica's acausal connectors to accurately model the flow of conserved quantities such as matter, energy, or information, as well as to represent instantaneous information signal flows through causal connections. Using pre-built components and hierarchical modeling, even complex models can be developed in a fast and reliable manner with the added benefits of embedded documentation and compact presentation.

Icon	Name	Description
	CausalLoop	Agile system dynamics modeling with quantitative causal loop diagrams (CLD+)
	Stocks	Containers ("reservoirs") used to represent entities that have been stored in a specific state
	Flows	Processes that move entities from one stock to another at a specific rate
	SourcesOrSinks	Flows into or out of a stock with infinite capacity at a system's boundary
	Converters	Information processing (blocks)
	InformationSources	External information input
	MoleculesOfStructure	Pre-built components to model information processing, decision making, and subsystems in general

You can read the documentation for the library online at:
https://bsl-support.de/BusinessSimulation/BusinessSimulation

Release Notes are included with the documentation and can be found there as well.

The library was developed and tested using Wolfram System Modeler and Wolfram Mathematica.
User experience may differ when using other modeling and simulation environments.

The freely available Lato fonts family is used by library classes; for the best visual experience it is highly recommended to install this font on your computer, which is available for download from its official site or—in an earlier version—from the Google Fonts website.

• Reichert, GW. 2022. Hierarchical, Component-Based Modeling Using the Cyber-Physical Modeling Language Modelica. In Conference Record of the 2022 System Dynamics Conference. Frankfurt, Germany, System Dynamics Society. [ online ]

• Reichert, GW. 2022. Business Simulation Library v2.0 released. System Dynamics Review 38(1): 113–116. [ DOI ]

Copyright © 2020 Guido Wolf Reichert
Licensed under the European Union Public Licence (EUPL), Version 1.2 or later (the "License")

You may not use this work except in compliance with the License. You may obtain a copy of the License at:
https://eur-lex.europa.eu/eli/dec_impl/2017/863/oj

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either expressed or implied. See the License for the specific language governing permissions and limitations under the License.

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Please refrain from pull requests until an appropriate Contributor License Agreement (CLA) has been established.