Circuits can be modified easily with on-screen editing, and analysis results provide fast, accurate feedback.

Learners work with circuits drawn on the computer screen and with simulated instruments that act like actual laboratory instruments. In addition, a Monte Carlo facility is provided to allow statistical assessments (including uncertainties) in models or data.This unique and innovative laboratory manual helps users learn and understand circuit analysis concepts by using Electronic Workbench software to simulate actual laboratory experiments on a computer. MIRIADbased applications, such as EWB, have utilities for viewing tabulated parametric study data, XY line plots, contour plots, and three-dimensional plots of contour data and system geometries. This approach provides great flexibility in tailoring the look and feel of the code to individual user needs. The user interface is externally programmable through ASCII data files, which contain the location and type of information to be displayed on the screen. The MIRIAD approach separates the computer assisted engineering (CAE) tool into three distinct units: 1) A modern graphical user interface to present information 2) A data dictionary interpreter to coordinate analysis and 3) A database for storing system designs and analysis results. MIRIAD, the unique software that makes up the core of EWB, provides the flexibility to easily modify old models and incorporate new ones as user needs change. EWB runs under UNIX operating systems (SGI and SUN workstations) and under MS Windows (3.x, 95, and NT) operating systems. It removes the tedious and error-prone steps of entering data by hand from one model to another.

This allows every module in EWB to communicate information to other modules in a transparent manner from the user's point of view.

EWB, which was developed for and under the guidance of the NASA Lewis Research Center, is built atop the Module Integrator and Rule-based Intelligent Analytic Database (MIRIAD) architecture. Over 100 environment and analysis models are integrated into the menu-based tool. EWB: The Environment WorkBench Version 4.0 The Environment WorkBench EWB is a desktop integrated analysis tool for studying a spacecraft's interactions with its environment.

Electronic workbench 4.0