---
title: "The Six Phases of the ADDIOI Model: Foundations of Cybersecurity Program Design"
date: 2024-01-12
canonical: "https://codeandcypher.com/papers/csol500-the-six-phases-of-the-addioi-model/"
author: "Joshua A. Wortz"
institution: "University of San Diego"

report_type: "Academic Research Paper / CSOL500"
doi: "10.5281/zenodo.22287536"
pdf_url: "https://codeandcypher.com/papers/csol500-the-six-phases-of-the-addioi-model.pdf"
description: "Explains Schreider's six-phase ADDIOI cybersecurity model (Align, Design, Develop, Implement, Operate, Improve) and principles for enterprise security programs."
---

# The Six Phases of the ADDIOI Model: Foundations of Cybersecurity Program Design

**Author:** Joshua A. Wortz, MSCOL, CISSP ([ORCID: 0009-0003-6722-1019](https://orcid.org/0009-0003-6722-1019))  
**Institution:** University of San Diego  
**Publication Date:** January 12, 2024  
**DOI:** [10.5281/zenodo.22287536](https://doi.org/10.5281/zenodo.22287536)  
**PDF Download:** [Full Research Paper PDF](https://codeandcypher.com/papers/csol500-the-six-phases-of-the-addioi-model.pdf)  

---

## Abstract

Cybersecurity programs are critical for safeguarding an organization’s assets and information. Schreider’s (2020, pp. 26-27) Align, Design, Develop, Implement, Operate, Improve (ADDIOI) Model provides a structured six-phase approach to building such programs by aligning objectives with organizational goals, creating robust designs, implementing and operating countermeasures, and driving continuous improvement through performance metrics and maturity models. Schreider’s seven design principles (2020, p. 31) enhance the effective implementation of cybersecurity measures by ensuring that critical business needs are not overlooked. Brown (2023) complements this framework by emphasizing risk-based prioritization, resilience, user-centric policies, adaptive defenses, holistic integration, data-driven metrics, and compliance with legal standards. Together, these frameworks ensure cybersecurity programs are robust, aligned with business priorities, adaptable to evolving threats, and grounded in best practices and governance. The principles outlined by Brown (2023), when applied within each phase of Schreider’s ADDIOI Model and seven design principles, develop a comprehensive and continually improving cybersecurity program.

---

## Research Paper Body

Assignment 1.1: The Six Phases of the ADDIOI Model
Cybersecurity programs are critical for safeguarding an organization’s assets and 
information. Schreider’s (2020, pp. 26-27) Align, Design, Develop, Implement, Operate, Improve 
(ADDIOI) Model provides a structured six-phase approach to building such programs by aligning 
objectives with organizational goals, creating robust designs, implementing and operating 
countermeasures, and driving continuous improvement through performance metrics and 
maturity models. Schreider’s seven design principles (2020, p. 31) enhance the effective 
implementation of cybersecurity measures by ensuring that critical business needs are not 
overlooked. Brown (2023) complements this framework by emphasizing risk-based 
prioritization, resilience, user-centric policies, adaptive defenses, holistic integration, data-
driven metrics, and compliance with legal standards. Together, these frameworks ensure 
cybersecurity programs are robust, aligned with business priorities, adaptable to evolving 
threats, and grounded in best practices and governance. The principles outlined by Brown 
(2023), when applied within each phase of Schreider’s ADDIOI Model and seven design 
principles, develop a comprehensive and continually improving cybersecurity program.
The first phase in the model, Align (Schreider, 2020, p. 26), focuses on identifying 
cybersecurity objectives and ensuring they connect with organizational goals. This phase 
provides the program support and drives the business requirements to offer help with 
executive buy-in. The align phase ties directly with the fifth design principle,  “The cybersecurity 
program will be an enabler to the business aligning to stakeholder requirements” (Schreider, 
2020, p. 31).  As Brown has discussed, security programs will “stall or go nowhere” (2023 p. 7)

without knowing the business goals and needs. Therefore, it is imperative to identify key 
business processes and focus security programs around those processes, fulfilling the need to 
gain stakeholder buy-in and become a steadfast ally of the business. 
The Design phase involves creating a blueprint for the cybersecurity program, 
incorporating frameworks, models, and a clear vision of the program’s structure. The design 
phase aligns with the first and second principles from Schreider, which says that cybersecurity 
programs exist to protect assets and information and the cost of programs should be 
“commensurate with the value of those assets and information” (2020, p. 31). Using Schreider's 
(2020) insights, the program’s blueprint must highlight measures to secure high-value assets 
and sensitive information, create a clear structure such as roles, responsibilities, and service 
management practices, and ensure robust program design while addressing business-specific 
risks. Focus on this portion is critical, as the job of cybersecurity experts is to advise on 
identifying and mitigating risks and creating a program that does not cost more than the value 
of the items targeted. Having a program that costs more than the value of the items targeted is 
poor business practice, as cybersecurity should not be cost-prohibitive.
Schreider’s Develop phase configures and tests cybersecurity measures to meet design 
requirements (2020, p. 26). Activities include creating application integrations and hardening 
infrastructure. Incorporation of the sixth principle in this phase, which focuses on “real and 
likely threats” (Schreider, 2020, p. 31), ensures that only the most essential tools are in the 
program. As Brown (2023) discussed, risk-based assessments help prioritize countermeasures, 
ensuring the development of resources to mitigate the most pressing risks. For example,

integrating advanced endpoint protection tools and threat intelligence systems addresses 
current threat landscapes and gives protection, heuristics, and intelligent threat analysis on our 
edge. By testing and ensuring they are effective at meeting the design criteria while providing 
prioritized remediation and visibility, a team can be swift and responsive to future design 
changes.
The Implementation phase executes the plans and “goes live” with countermeasures, 
policies, and training programs (Schreider, 2020, p. 26). It can be one of the most sensitive 
moments, as security tools without proper implementation can affect business processes. It is 
essential to incorporate service management practices described in the third principle to 
ensure successful implementation (Schreider, 2020, p. 31). Through service management, 
critical processes such as organizing, training, and tools aid in instilling a security culture. For 
instance, providing security awareness training emphasizing phishing prevention creates a 
human firewall—an effective first line of defense against threats. Implementation is the most 
challenging phase, which can cause many security programs to fail. Rushing toward this phase 
will ultimately lead to losing trust in processes, tools, and teams.
The Operate phase oversees the cybersecurity program's day-to-day functioning, 
including SecOps, threat monitoring, and service desk operations (Schreider, 2020, p. 26). Using 
frameworks like ITIL for service management and aligning operations with ISO standards 
ensures program sustainability. Brown (2023) emphasizes operational efficiency's importance in 
adapting to evolving cybersecurity landscapes, which aligns with the seventh principle

(Schreider, 2020, p. 31). Operating is essential because the threat landscape grows and changes 
daily. The insights gained from operating will inform the next and final phase.
The cycle concludes with the Improve phase, where continuous improvement ensures 
the program evolves to meet changing needs and threats (Schreider, 2020, p. 26). This phase 
involves performance monitoring, assessments, and maturity model-based guidance. As 
detailed in the fourth principle, regular audits, key performance metrics, and adherence to legal 
requirements ensure the program remains effective and compliant. For example, Schreider 
(2020, p. 27) highlights using maturity models to create a performance baseline and drive 
program enhancements. Failing to continually improve and develop cybersecurity programs will 
ultimately lead to antiquated security controls that put organizations at risk because of 
constantly changing threat actors, laws, and regulations.
The ADDIOI model provides a systematic framework for designing and managing an 
effective cybersecurity program. By aligning each phase with the seven design principles, 
organizations can ensure their cybersecurity initiatives are robust, compliant, and adaptable to 
evolving threats. Insights from Schreider (2020) and Brown (2023) reinforce the importance of 
aligning cybersecurity strategies with business goals and leveraging good practices to achieve 
long-term success.

### References
Brown, J. (2023). Executive's Cybersecurity Program Handbook: A Comprehensive Guide 
to Building and Operationalizing a Complete Cybersecurity Program. Packt Publishing, 
Limited.
Schreider, T. (2020). Building an Effective Cybersecurity Program, 2nd Edition (2nd ed.). 
Rothstein Publishing.


---

> **Archival Artifact:** The complete, formatted research publication can be accessed directly as a PDF at [https://codeandcypher.com/papers/csol500-the-six-phases-of-the-addioi-model.pdf](https://codeandcypher.com/papers/csol500-the-six-phases-of-the-addioi-model.pdf).


---

## Citation (APA 7th Edition)
Wortz, J. A. (2024). *The Six Phases of the ADDIOI Model: Foundations of Cybersecurity Program Design*. Code and Cypher. https://doi.org/10.5281/zenodo.22287536
