ReliaSoft RENO is a powerful and user-friendly platform for building and running complex analyses for any probabilistic or deterministic scenario using an intuitive flowchart modeling approach and simulation.
The flowcharts created can model analyses — however complex they are — to support your decision making process.
The Monte Carlo simulation software provides an array of definitions and constructs that will allow you to model the situation that you wish to examine. It also provides built-in auto-complete, IntelliSense, color-coding and “debugger” features that will help you build and verify the model. Simulation can be used to estimate or optimize the results needed for further analysis.
RENO is unique in the fact that it gives you the flexibility of a computer language, but instead of writing computer code, you use the familiar flowcharting concept to build your analysis.
- Potential applications for risk analysis, complex reliability modeling and much more.
- Easy-to-build flowchart models including variables, models, functions, conditional blocks, logic gates, result storage blocks, flag markers, counters and more.
- Intelligent features for equation building to assist with building equations, such as color-coding, resource preview and the Function Selector and Equation Editor.
- Debugger Utility to help you validate and “debug” your flowchart models.
- Flexible array of results with multiple display options in spreadsheets, in the flowchart and/or in plots.
- Sensitivity analysis and optimization to vary one or two variables across simulation runs based on the starting, ending and increment values that you specify.
With RENO you can:
- Estimate results of interest.
- Perform sensitivity analysis to evaluate how key inputs will affect the results.
- Automatically estimate optimum values by performing multiple simulation runs.
These techniques can be applied for a wide variety of applications:
- Risk/Safety Analysis
- Complex Reliability Modeling
- Decision Making
- Maintenance Planning
- Operational Research
- Financial Analysis
With RENO, you will use a familiar and intuitive flowcharting concept to build graphical models for the scenarios that you are trying to understand, quantify and/or simulate.
Employ easy point-and-click techniques to build flowcharts from blocks, gates and other resources that are already defined in the project — and easily define new modeling elements as your flowchart evolves.
Flexible Array of Building Blocks
The software provides an extensive and flexible selection of building blocks to serve different functions within the flowchart model. Some of the most commonly used modeling features include the ability to:
- Use variables to store numerical values.
- Build simple or complex equations for a wide variety of purposes. The equation in a RENO function takes inputs generated during simulation, while the equation in a static function is evaluated without any input supplied.
- Check incoming values against one or more conditions in order to trigger various responses. This includes “if statements” with true/false outcomes for single or multiple inputs (conditional blocks and logic gates), as well as “switch statements” with multiple possible outcomes (branch gates).
- Use tables to store an array of values in rows and columns.
- Use summing gates to perform mathematical operations on multiple incoming values to determine a single output value.
- Control the flowchart path, including loops and other complex configurations, using flag markers and go-to-flag blocks, stop flags, counter blocks and reset blocks.
- Use result storage blocks to compute averages, sums, arrays, minimums/maximums and more.
- Use binary nodes to determine outcome probabilities, which makes decision/event trees quick and easy.
- Use Synthesis models to describe any probability that can be constant or described by a statistical distribution.
- Use a simulation definition to trigger simulation of a BlockSim diagram from within a RENO flowchart, so that you can use one or more results from the simulation in the flowchart.
BlockSim Results within RENO Flowcharts
RENO flowcharts and BlockSim diagrams are directly integrated into the same software interface so you can work with both types of analyses together, and share many of the same resources. You have an option to use outputs from BlockSim RBDs or fault trees as inputs in your RENO flowcharts. For example, if you have an analytical diagram in BlockSim that describes the reliability of a system, you can publish a model that will provide the system reliability when it’s needed in any RENO flowchart. Likewise, if you have a BlockSim simulation diagram that estimates a system’s operating cost, uptime, availability and other factors of interest, you can use the new simulation definition resource to draw any of these results into a RENO flowchart. In addition, you can now use dynamic models for specific inputs in your BlockSim diagrams and then use RENO flowcharts to set the values for any given simulation.
The Simulation Worksheets feature allows you to vary values that are used in simulating a BlockSim RBD or RENO flowchart. This enables you to investigate the effect of one or more settings on the simulation results. Two of the most useful applications are the ability to:
- Design an experiment in Weibull++ —> simulate the experiment in BlockSim or RENO —> then return to Weibull++ and analyze the simulated “response” data.
- Perform batch simulation of an RBD, using different input values for each simulation. For example, this tool makes it easy to run a set of simulations that compare a variety of possible scenarios by altering specific inputs for each simulation.
Diagram Skins allow you to maximize the visual impact and appeal of your flowcharts by applying a set of preferences for the colors, lines, text and images used. Choose from a variety of skins included with the software or create your own. Diagram skins are universal across all desktop applications. This means that a single skin can contain the appearance settings for all types of diagrams in BlockSim/RENO, Weibull++/ALTA and Xfmea/RCM++/RBI.
Convenient Color-Coding: As you type, RENO automatically color-codes recognized resources, functions and operands to make it easy for you to spot potential problems.
Resource Preview: When you’re editing an equation, the convenient Resource Preview provides a quick summary of the properties of each resource or function. If you need more information or want to change a resource, you can open the full resource properties window with the click of a button.
Automatic Conversion for Time Values Entered in Different Units: You can define conversion factors for entering time values in different units.
Function Selector and Equation Editor: Two integrated tools provide instant access to all of the building blocks that you will use in the equations for your analyses. This includes:
- Any of the user-defined resources available in the project
- Built-in internal functions that instruct the software to insert specific flowchart- or simulation-related information into an equation. The versatile getvalue functions can pull values from variables, tables or analysis workbooks and you can also use functions that obtain specific metrics from a given probability distribution.
- Any of the predefined functions supported by the software, including:
- Engineering functions such as Bessel, Error functions, etc.
- Math and Trigonometry functions such as Sine, Derivative, Integral, Logarithm, etc.
- Financial functions such as Future Value, Cumulative Interest Paid, Periodic Payment for an Annuity, etc.
- Statistical functions such as the Weibull distribution, the Fisher Transformation, the Chi-Squared distribution, etc.
- Logical functions such as IF statements and TRUE/FALSE statements.
RENO includes an integrated utility to help you validate and “debug” your flowchart models. This feature allows you to move through each step in a flowchart and watch the values as each block or resource is executed. You can also watch the progress as the software automatically performs a specified number of simulations in “debug” mode.
Extensive Potential Applications
The applications for RENO are limited only by your imagination and ability to create a flowchart model. Some of the most common include:
- Systems/Product Engineering and Modeling
- Reliability and Failure Analysis
- Risk and Hazard Analysis
- Vulnerability Analysis
- Conceptual Design
- Probabilistic Design
- Systems Engineering
- Materials Handling
- Quality Control / Quality Assurance
- Environmental Systems Modeling
- Hazardous Waste Sites, Safety Analysis
- Natural Resource Planning and Management
- Business, Financial and Economic Modeling
- Strategic Planning
- Business Process Modeling
- Financial Analysis
- Risk Analysis and Management
- Cost Modeling
- Portfolio Management
- Six Sigma
- Yield Analysis
- Supply Chain Modeling
- Financial Engineering
- Ecosystem Modeling
Sample Analysis Projects
Perhaps the best way to explore RENO’s features and functionality is by considering some examples. The software is shipped with an assortment of sample projects.
Customizable Results and Plots
Once you have constructed a flowchart model that will explore the scenario of interest to you, RENO executes the model to generate desired results. This may include averages, sums, arrays, minimum values, maximum values, etc. For models without randomized values, a single execution will yield all results of interest. When randomized values are present, discrete event Monte Carlo simulation will be utilized.
During simulation, you can track the real-time values for a result of interest while the model is executed. Watch the result’s progress over time, or see how your results vary during sensitivity analysis.
After simulation, you can see final results directly in the flowchart. View the values for all result storage blocks, as well as the last values for other blocks, if desired. Plus, you can use Excel®-compatible spreadsheets to explore all applicable results, and to copy/paste or export results of interest to your reports or customized analyses.
The Plot Setup allows you to completely customize the “look and feel” of plot graphics while the RS Draw metafile graphics editor provides the option to insert text, draw objects or mak particular points on plot graphics. You can save your plots in a variety of graphic file formats for use in other documents. With RENO you can use interactive plot zoom.
RENO’s Sensitivity Analysis feature makes it easy to vary one or two variables across analyses/simulation runs. If you are analyzing potential investment strategies, you may wish to vary the number of years that you will be investing and/or the percentage of your income that will be invested to see how different inputs will affect the final results. Likewise, you may wish to generate reliability or availability results for a range of times in order to examine the equipment’s behavior over time.
Multiple Analyses for Optimum Values
The Multiple Analyses feature takes the sensitivity analysis capability a step further by allowing you to configure the software to automatically vary the specified variable(s) in order to determine the value that minimizes or maximizes a specified result.
For example, you could use this feature to automatically determine the optimum amount of inventory to maximize profits or the optimum preventive maintenance (PM) interval to minimize costs. The results of each analysis can be displayed in the plot sheet, with the optimum value marked on the plot.
Calculation and function enhancements
ReliaSoft RENO now has RENO specific MIN and MAX functions, and an enhanced Equation Editor. If a function requires parameters, the preview area indicates (in all capital letters) which parameter you are currently entering; additionally, for nested functions, the preview area displays the current function and the parent function. If the item is a resource, you can click the View icon in the preview area to open that resource’s properties window.
Enhanced stop flag
Users can now specify whether to abort the current simulation, the current run, or the entire analysis. Depending on your selection, no further simulations, runs or analyses will be performed until you next simulate the flowchart.