Whether you’re building a smartphone or a space shuttle, your embedded systems are likely more complex than they’ve ever been—making integration of software and hardware more challenging than ever. For example, an engineering error that only shows up during integration can send you all the way back to the whiteboard in search of a better system design, pushing your project off schedule and over budget.

♦ Embedded system projects often run up to 80% over budget

♦ One-quarter of such projects are canceled due to cost overruns

♦ Projects that do reach the finish line typically meet just 70% of requirements

How can you avoid making your project one of these projects? You need enough time and the right analytical support to identify your ideal design up front and then build it just once. You won’t just save time and money and create a more functional embedded system today. You’ll also build the foundation for better, faster, and more cost-effective updates and next-generation projects for years to come.


simpleXecutive is the answer. We enable architects, developers, programmers, engineers, and designers to deliver sophisticated embedded systems that meet more of a manufacturer’s or customer’s requirements —faster, at lower cost, and with less risk than traditional design and development approaches. to test alternative designs using system simulations and to select the most effective design before you ever write a line of code. With simpleXecutive, you can:

♦ Ensure your system meets requirements

♦ Improve integration

♦ Validate integrity

♦ Enhance performance

We founded simpleXecutive to fill a clear market need. DARPA, the Defense Advanced Projects Research Agency, has helped us to commercialize our approach. We’ve used it to help optimize defense and civilian aerospace systems, medical imaging systems, and and can work for you.


simpleXecutive is named for the executive function of organizing your software and hardware to work together. Our approach consists of a methodology—including blueprints, language, and tool-set—that our team applies to your project, working in close collaboration with you. We do the work and you get the benefit— in as little as a few weeks.


Here’s how we do it:

♦ Capture your proposed top-level design—including behavior, structure, hardware and more—in engineering REAL® (Real-time Executable Architecture Language) blueprints.

♦ Create a formal system design model from the REAL blueprints.

♦ Analyze the model for completeness and consistency using our SIMPLEX® static analysis tools to overcome integrity hazards.

♦ Create a performance model synthesizing real-time operation.

♦ Analyze the model’s behavior and performance using our SIMPLEX dynamic analysis tools.

♦ Consider alternatives, “what if” changes, and trade studies and run them through the simpleXecutive methodology.

♦ Optimize your design by choosing the best alternative.


With this process, you can identify and resolve traditional backend challenges of integration and performance before they lead to delays and cost overruns. simpleXecutive methodology is a traditional waterfall approach to system development that focuses on risk reduction, while adding Agile-like immediate feedback and flexibility.

With simpleXecutive, you likewise reduce risk, so you can be confident that your system will perform as you expect. And you can use simpleXecutive anytime—during a proposal, at the start of a project, or when you’re in a bind with traditional approaches.

Our consultants are ready to train you and your team to use our blueprint diagrams to

graphically represent your system model. Additionally, we are ready to train you and

your team to translate those diagrams into our language.

We offer consulting services on the development of your system

design solutions using our SIMPLEX software tools.

Developed for engineers by engineers, simpleXecutive’s patented modeling

tools evolve designs and validate performance against requirements.


LET simpleXecutive HELP YOU TOO!





Suzanne Welton

Director, Business Development


Suzanne has a decade’s plus years of experience bringing pre-released software and hardware to market for the first time. Her career spans over twenty years focusing on marketing and consumer experiences. She has a proven record of success managing high-risk, complicated, large budget and high-profile projects. She has a proven track record of leading multi-disciplined teams to achieve award winning cohesive executions that are on time, and on budget.



  • Bachelors of Communication/Advertising, University of Washington
  • Executive Masters in Business Administration, University of Washington


Gregory Scallon

Chief Engineer


Founder and Chief Engineer of Commercial Computer Systems, brings over four decades of software research experience to our team.  He specializes in effective real-time distributed system designs based on performance modeling to improve system effectiveness.

Greg has applied his extensive engineering skills to create the simpleXecutive Methodology which includes REAL Blueprints, REAL Language and SIMPLEX simulation design automation tool, which models a system’s performance based on its defined structure and characteristics. These tools synthesize system level interactions between hardware, software and communication subsystem modules. The newly patented tools have successfully verified system design performance against complex distributed system effectiveness goals early in system development, i.e. prior to initiating coding.

Greg has acquired a broad experience base as Chief Computing System Architect for multiple successful large scale, real-time projects. This experience includes commercial avionics, manned Apollo Moon Mission, medical diagnostic and therapeutic systems, DoD weapon systems, and Star Wars experiments.  Optimized system level performance on complex real-time distributed systems is the hallmark of his designs.

Greg retired from Boeing as an Associate Technical Fellow after 30 years of successful aerospace experience specializing in complex real-time system design, performance modeling and evaluation, and basic research for a wide variety of large scale embedded real-time distributed systems.

His subsequent CCS career includes successfully solving many complex real-time medical and avionics system design development challenges.



  • Seattle University, BSEE, ’65, minors in Math and Nuclear Physics
  • Post graduate studies at MIT and FSU in digital signal processing and filtering
  • Extensive formal systems engineering training from NASA and USAF


  • Appointed Technical Fellow of the Washington Technology Center,
  • Founding Technical Contributor to the Software Productivity Consortium
  • Patented inventor (of both hardware and software) and published author
  • Awarded 9th annual Simulation Symposium best paper by IEEE & ACM