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doc/paper/paper.md

@@ -21,24 +21,28 @@ bibliography: paper.bib
 
 # Summary
 
-FMU4cpp is a CMake template repository that acts as a framework for creating Functional Mockup Units (FMUs) compatible with the Functional Mockup Interface (FMI) standard [@blochwitz2011functional] in idiomatic C++. 
-Currently, version 2.0 for Co-simulation [@blochwitz2012functional] is supported.
-In short, an FMU is a component implementation the FMI standard. They are distributed as zipped archive consisting of shared libraries implementing a known 
-C interface together with a _modelDescription.xml_ file detailing their capabilities and available variables. Additionally, model specific resources may be embedded.
+FMU4cpp is a CMake template repository that acts as a framework for creating 
+Functional Mockup Units (FMUs) compatible with the Functional Mockup Interface (FMI) standard [@blochwitz2011functional], which is an open standard for model exchange and co-simulation of dynamic systems,
+in idiomatic C++. Currently, version 2.0 for Co-simulation [@blochwitz2012functional] is supported.
+In short, an FMU is a component implementation the FMI standard. They are distributed as zipped archive consisting 
+of shared libraries implementing a known 
+C interface together with a _modelDescription.xml_ file detailing their capabilities and available variables. 
+Additionally, model specific resources may be embedded.
 The intention of FMU4cpp is to provide a streamlined way of generating such FMUs based on C++ source code.
 To do so, the framework provides skeleton code for the user to implement, 
-so that most of the low level details of the FMI standard is hidden. 
+so that many of the low level details of the FMI standard is abstracted away. 
 Furthermore, it handles generating the required XML as well as packaging the model according to the requirements. 
-To further simplify model creation, the framework utilizes GitHub Actions in order to automatically build and package cross-platform FMUs.
+To further simplify model creation, the framework utilizes GitHub Actions in order to automatically build and 
+package cross-platform FMUs.
+When the users push their changes to GitHub, the model is verified against standard conformance and built 
+on an Ubuntu and Windows runner. 
+The resulting shared libraries are then joined into a final archive which can be directly downloaded and 
+imported into a simulation tool.
 
 
 # Statement of need
 
 A survey of existing open-source software that facilitates exporting FMUs from source-code is shown in Table 1.
-The non-native solutions listed here provides similar capabilities, however the native solutions require a substantial expert knowledge 
-and users are left with the task of generating metadata and final packaging. 
-Thus, FMU4cpp provides a significant usability improvement over these alternatives.
-
 
 Table 1: Survey of existing open-source FMI exporters.
 
@@ -51,8 +55,24 @@ Table 1: Survey of existing open-source FMI exporters.
 | PythonFMU [@hatledal2020enabling] |  Python  |        2024        |
 |  unifmu [@legaard2021universal]   | Multiple |        2024        |
 
+
+The non-native solutions listed here provide similar capabilities as FMU4cpp,
+however the native solutions require a substantial expert knowledge
+and users are required to manually generate XML metadata as well as packaging the necessary files into an FMU.
+Thus, FMU4cpp provides a significant usability improvement over these alternatives as it:
+1. Provides a simplified API to implement.
+2. Generates the required XML metadata.
+3. Verifies the FMU against the standard.
+4. Cross-compiles the shared library
+5. Packages the FMU
+
+A framework like FMU4cpp is useful for generating both simple and more complex models that does not fit with the restrictions
+of a specialized modelling tools. Targeting C++ is also useful compared to similar solutions for Python and Java,
+as a runtime is not necessarily required to invoke the model, increasing portability.
+
 # Future of FMU4cpp
 
-With FMI 3.0 [@junghanns2021functional] released in 2022, an obvious and planned enhancement to FMU4cpp is to support this newer version of the standard.
+With FMI 3.0 [@junghanns2021functional] released in 2022, an obvious and planned enhancement 
+to FMU4cpp is to support this newer version of the standard. 
 
 # References