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How valuable is Process Simulation Modeling (PSIM)?
Process Simulation Modeling (PSIM) can provide real business value to organizations
that are trying to change processes. When companies use the appropriate software
simulation designed for their industry to evaluate process performance, these
organizations can improve their operations and achieve higher levels of process
maturity with the integration of CMMI. However, regardless of what changes a
company is considering, there are always costs and risks involved with any type
of change.
PSIM allows a company to examine the changes it want to make, analyze these
changes, and determine the impact the change will have on a company's process.
"Any changes that have a significant impact on the product outcome can
cause a risk exposure -- especially if the organization is investing a significant
amount of money in terms of tools, technologies and the training or retraining
of people," says David M. Raffo, PhD, a full professor at Portland State
University with joint appointments in the Business Administration, Engineering
and Computer Science Departments.
As the co-author of Moving up the CMMI Capability and Maturity Levels Using
Simulation, he has extensively studied the benefits of using PSIM to improve
organizations and to keep these companies focused. Dr. Raffo's report, itself,
is aimed at practitioners, especially software and systems project managers.
Dr. Raffo focuses on how PSIM can be used to evaluate issues related to process
strategy, process improvement, project management, technology and tool adoption,
and control and process design. He stresses that PSIM is a flexible tool that
can aid in quantitatively testing ideas such as how to configure a process --
or how to configure a software acquisition supply chain. Moreover, this model
fulfills the requirements for Process Performance Models (PPMs) that are essential
for high maturity organizations as specified by the CMMI.
Who should use PSIM?
When a company has expensive processes or when a company is developing safety
or mission critical products, PSIM should be considered. "Recent developments
in PSIM tools have drastically cut the costs to develop models for evaluating
such issues, and new methods have been developed to apply PSIM -- enabling it
to rapidly provide greater business value," he says. "At the same
time, trends within the software industry towards improving operations and reducing
costs have heightened the need for tools to better plan and manage processes."
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