William Roetzheim

Mr. Roetzheim (PMP, RMP, MBA, CRISC, CISA, IFPUG) is founder and CEO of Level 4 Ventures, Inc., an SDVOSB that offers independent cost analysis, risk management, and project oversight services for large IT projects. He has written 27 published books, over 100 articles, and three columns. He is a frequent lecturer and instructor at multiple technology conferences and two California universities. He can be reached at William@level4ventures.com.

Journal Articles

Parametric Modeling to Support System Acquisition

This article describes the use of parametric modeling to support independent government cost estimates at the feasibility/budgeting, acquisition, and on-going project lifecycle procurement support. Benefits over alternate approaches (analogy and bottom-up) are defined, and typical budgets for this activity are…
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Data Privacy Day - Jan 28

You can help create a global community that respects privacy, safeguards data, and enables trust. You can help teach others about privacy at home, at work, and in your community.

Learn How

Featured Subject Matter Expert (SME): Daksha Bhasker

A dynamic CSIAC SME, Senior Principal Cybersecurity Architect, Daksha Bhasker has 20 years of experience in the telecommunications services provider industry. She has worked in systems security design and architecture in production environments of carriers, often leading multidisciplinary teams for cybersecurity integration, from conception to delivery of complex technical solutions. As a CSIAC SME, Daksha's contributions include several published CSIAC Journal articles and a webinar presentation on the sophiscated architectures that phone carriers use to stop robocalls.

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The DoD Cybersecurity Policy Chart

This chart captures the tremendous breadth of applicable policies, some of which many cybersecurity professionals may not even be aware, in a helpful organizational scheme.

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CSIAC Report - Smart Cities, Smart Bases and Secure Cloud Architecture for Resiliency by Design

Integration of Smart City Technologies to create Smart Bases for DoD will require due diligence with respect to the security of the data produced by Internet of Things (IOT) and Industrial Internet of Things (IIOT). This will increase more so with the rollout of 5G and increased automation "at the edge". Commercially, data will be moving to the cloud first, and then stored for process improvement analysis by end-users. As such, implementation of Secure Cloud Architectures is a must. This report provides some use cases and a description of a risk based approach to cloud data security. Clear understanding, adaptation, and implementation of a secure cloud framework will provide the military the means to make progress in becoming a smart military.

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CSIAC Journal - Data-Centric Environment: Rise of Internet-Based Modern Warfare “iWar”

This journal addresses a collection of modern security concerns that range from social media attacks and internet-connected devices to a hypothetical defense strategy for private sector entities.

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CSIAC Journal M&S Special Edition - M&S Applied Across Broad Spectrum Defense and Federal Endeavors

This Special Edition of the CSIAC Journal highlights a broad array of modeling and simulation contributions – whether in training, testing, experimentation, research, engineering, or other endeavors.

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CSIAC Journal - Resilient Industrial Control Systems (ICS) & Cyber Physical Systems (CPS)

This edition of the CSIAC Journal focuses on the topic of cybersecurity of Cyber-Physical Systems (CPS), particularly those that make up Critical Infrastructure (CI).

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