What is the process for selecting the best modeling and simulation tools for systems engineering?

1 Define the problem

The first step in the process is to clearly define the problem that the M&S tools will help to solve. This involves identifying the system's boundaries, inputs, outputs, behaviors, interactions, and constraints, as well as the project's scope, purpose, goals, and criteria for success. The problem definition should also specify the level of detail, accuracy, and fidelity required for the M&S tools, as well as the assumptions and limitations that may affect the results. A well-defined problem will help to narrow down the range of possible M&S tools and to evaluate their suitability for the project.

2 Identify the requirements

The next step is to identify the requirements for the M&S tools, based on the problem definition and the stakeholder's needs. The requirements should include both functional and non-functional aspects, such as the M&S methods, techniques, languages, frameworks, standards, platforms, interfaces, data sources, validation, verification, documentation, and maintenance. The requirements should also consider the availability, accessibility, usability, scalability, interoperability, compatibility, reliability, security, and cost of the M&S tools. The requirements should be prioritized and categorized according to their importance and feasibility for the project.

3 Evaluate the alternatives

The third step is to evaluate the alternatives for the M&S tools, based on the requirements and the problem definition. This involves searching for existing or potential M&S tools that match or can be adapted to the project's needs, as well as comparing and contrasting their strengths, weaknesses, opportunities, and threats. The evaluation can be done using various methods, such as literature reviews, surveys, interviews, case studies, benchmarks, tests, demonstrations, or prototypes. The evaluation should also consider the feedback and opinions of the stakeholders and experts involved in the project.

4 Select the best option

The fourth step is to select the best option for the M&S tools, based on the evaluation and the requirements. This involves applying a decision-making process that takes into account the criteria, preferences, trade-offs, risks, and uncertainties of the project. The decision-making process can be based on various techniques, such as multi-criteria analysis, decision matrices, decision trees, analytic hierarchy process, or weighted scoring. The selection should also be justified and documented with evidence and rationale.

5 Implement the solution

The fifth step is to implement the solution with the chosen M&S tools, based on the problem definition and the requirements. This involves developing, configuring, integrating, testing, and deploying the M&S tools for the project. The implementation should also follow the best practices and standards for M&S development, such as modularity, reusability, traceability, transparency, and quality assurance. The implementation should also be monitored and controlled with appropriate methods and tools, such as project management, configuration management, change management, and risk management.

6 Review the results

The sixth and final step is to review the results obtained with the M&S tools, based on the problem definition and the requirements. This involves assessing, verifying, validating, and evaluating the performance, accuracy, reliability, and usefulness of the M&S tools for the project. The review should also involve the stakeholders and experts, as well as the end-users, to collect their feedback and satisfaction. The review should also identify the lessons learned, the best practices, the challenges, and the opportunities for improvement or future work with the M&S tools.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?