Dr. Nader Mehravari Research Scientist, CERT Division

Transcription

1 Everything You Always Wanted to Know About Maturity Models Dr. Nader Mehravari Research Scientist, CERT Division Dr. Nader Mehravari is with the CERT Program at the Software Engineering Institute (SEI), a unit of Carnegie Mellon University in Pittsburgh, PA. His current areas of interest and research include operational resilience, protection and sustainment of critical infrastructure, preparedness planning, and associated risk management principles and practices. Nader was with Lockheed Martin from 1992 through In his most recent assignment, he was the Director for Business Resiliency. In this capacity, he led and oversaw all preparedness planning and associated governance and compliance activities. He was responsible for building and leading Lockheed Martin's resiliency program where he successfully implemented a modern, integrated, risk management based approach to disaster recovery, business continuity, pandemic planning, crisis management, emergency management, and workforce continuity for all of Lockheed Martin.

2 Notices Copyright 2014 Carnegie Mellon University This material is based upon work funded and supported by the Department of Defense under Contract No. FA C-0003 with Carnegie Mellon University for the operation of the Software Engineering Institute, a federally funded research and development center. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the United States Department of Defense. NO WARRANTY. THIS CARNEGIE MELLON UNIVERSITY AND SOFTWARE ENGINEERING INSTITUTE MATERIAL IS FURNISHED ON AN AS-IS BASIS. CARNEGIE MELLON UNIVERSITY MAKES NO WARRANTIES OF ANY KIND, EITHER EXPRESSED OR IMPLIED, AS TO ANY MATTER INCLUDING, BUT NOT LIMITED TO, WARRANTY OF FITNESS FOR PURPOSE OR MERCHANTABILITY, EXCLUSIVITY, OR RESULTS OBTAINED FROM USE OF THE MATERIAL. CARNEGIE MELLON UNIVERSITY DOES NOT MAKE ANY WARRANTY OF ANY KIND WITH RESPECT TO FREEDOM FROM PATENT, TRADEMARK, OR COPYRIGHT INFRINGEMENT. This material has been approved for public release and unlimited distribution. This material may be reproduced in its entirety, without modification, and freely distributed in written or electronic form without requesting formal permission. Permission is required for any other use. Requests for permission should be directed to the Software Engineering Institute at permission@sei.cmu.edu. Carnegie Mellon and CERT are registered marks of Carnegie Mellon University. DM

3 Outline Setting the Stage The need for measuring operational activities & their effectiveness Are we doing the right things? Are we using the right tools to measure? Are we measuring the right things? ABCs of Maturity Models What are Maturity Models? Types of Maturity Models Examples of Maturity Models Closing Thoughts A few cautions Determining when and which type to use

4 Setting the Stage The need for measuring operational activities & their effectiveness Are we doing the right things? Are we using the right tools to measure? Are we measuring the right things?

5 Today s Operating Environment Rapid changes in technology and its application in a wide range of industries. Introduction of many new systems, business processes, markets, risks, and enterprise approaches. Many immature products and services being consumed by enterprises that themselves are in a state of change.

6 Challenges at Hand How can you tell if you are doing a good job of managing these changes? How best to monitor your progress on an ongoing basis? How do you manage the interactions of systems and processes that are continually changing? How do poor processes impact interoperability, safety, reliability, efficiency, and effectiveness?

7 Which tool should I use? Your organization wants to know SOMETHING about your mission operation: How EFFECTIVE are we? Do we have the right SKILLS and CAPABILITIES? Do we have the right TECHNOLOGIES? OR

8 Observation The development and use of maturity models in security, continuity, IT operations, & resilience space is increasing dramatically.

9 Do maturity models measure the right thing? v May not measure what you think it measures Ø Practice maturity vs. organizational maturity? v May give you inaccurate data on which to base decisions Ø Process performance vs. product performance? v Can increase cost but reduce benefit Ø An improved process may not result in compliance v May provide a false sense of confidence Ø A robust process may not stop all malware

10 ABCs of Maturity Models What are Maturity Models? Types of Maturity Models Examples of Maturity Models

11 Maturity Model Defined An organized way to convey a path of experience, wisdom, perfection, or acculturation. Depicts an evolutionary progression of an attribute, characteristic, pattern, or practice. The subject of a maturity model can be objects or things, ways of doing something, characteristics of something, practices, controls, or processes.

12 Maturity Models Provide Means for assessing and benchmarking performance Ability to assess how a set of characteristics have evolved Expression of body knowledge of best practices Identification of gaps and improvement plans Roadmap for model-based improvement Demonstrated results of improvement efforts Common language or taxonomy

13 Key Components of a Maturity Model Levels The measurement scale The transitional states Domains Logical groupings of like attributes into areas of importance to the subject matter and intent of the model Logical groupings of like practices, processes, or good things to do Attributes Core content of the model arranged by domains and levels Typically based on observed practices, standards, or expert knowledge Diagnostic Methods For assessment, measurement, gap identification, benchmarking Improvement Roadmaps To guide improvement efforts (e.g., Plan-Do-Check-Act)

14 Types of Maturity Models There are three types of maturity models Progression Maturity Models Capability Maturity Models (CMM) Information Technology/Risk Management Part Two focuses on using CERT-RMM to establish a foundation for sustaining operational resilience management processes in complex environments where risks rapidly emerge and change. Part Three details all 26 CERT-RMM process areas, from asset definition through vulnerability resolution. For each, complete descriptions of goals and practices are presented, with realistic examples. Part Four contains appendices, including Targeted Improvement Roadmaps, a glossary, and other reference materials. This book will be valuable to anyone seeking to improve the mission assurance of high-value services, including leaders of large enterprise or organizational units, security or business continuity specialists, managers of large IT operations, and those using methodologies such as ISO 27000, COBIT, ITIL, or CMMI. informit.com/seiseries cert.org/resilience Cover illustration by nikamata/istock.com Text printed on recycled paper ISBN-13: ISBN-10: Caralli Allen White The authors are senior technical staff members within the CERT Program of the Software Engineering Institute (SEI). Richard A. Caralli, Resilient Enterprise Management technical manager, develops and delivers methods, tools, and techniques for enterprise security and resilience management. He led the development of CERT-RMM. Julia H. Allen develops and transitions executive outreach programs in enterprise security and governance and researches software security and assurance. She served as the SEI s Acting Director and Deputy Director/COO and authored The CERT Guide to System and Network Security Practices (Addison-Wesley, 2001). David W. White, a core member of the CERT-RMM development team, develops CERT-RMM and related products and helps organizations apply them. A Maturity Model for Managing Operational Resilience SEI SERIES t A CERT BOOK Part One summarizes the value of a process improvement approach to managing resilience, explains CERT-RMM s conventions and core principles, describes the model architecturally, and shows how it supports relationships tightly linked to your objectives. CERT Resilience Management Model This book both introduces CERT-RMM and presents the model in its entirety. It begins with essential background for all professionals, whether they have previously used process improvement models or not. Next, it explains CERT-RMM s Generic Goals and Practices and discusses various approaches for using the model. Short essays by a number of contributors illustrate how CERT-RMM can be applied for different purposes or can be used to improve an existing program. Finally, the book provides a complete baseline understanding of all 26 process areas included in CERT-RMM One or more may be appropriate for your particular needs CERT -RMM, Version 1.1 CERT Resilience Management Model (CERT-RMM) is an innovative and transformative way to manage operational resilience in complex, risk-evolving environments. CERT-RMM distills years of research into best practices for managing the security and survivability of people, information, technology, and facilities. It integrates these best practices into a unified, capability-focused maturity model that encompasses security, business continuity, and IT operations. By using CERT-RMM, organizations can escape silo-driven approaches to managing operational risk and align to achieve strategic resilience management goals. CERT Resilience Management Model Hybrid Maturity Models Richard A. Caralli Julia H. Allen David W. White $79.99 US CANADA Not all maturity models are CMMs

15 Progression Maturity Models Simple progression or scaling of an attribute, characteristic, pattern, or practice Levels describe higher states of achievement, advancement, completeness, or evolution Levels can be arbitrary as agreed upon by users, industry, etc.

16 Progression Maturity Models - Example A Maturity Progression for Toy Building Bricks Lego Mindstorms Lego Architecture Lego Technic Lego City Lego Duplo

17 Progression Maturity Models - Example A Maturity Progression for Human Mobility Fly Sprint Run Jog Walk Crawl A Maturity Progression for Authentication Three-factor authentication Two-factor authentication Addition of changing every 60 days Use of strong passwords Use of simple passwords Progress does not necessarily equate to maturity

18 Progression Maturity Models - Example Higher levels may be characterized as tool- enabled These characteriza,ons are typically arbitrary Lower levels may be characterized as primi6ve A Maturity Progression for Counting Computer Calculator Adding machine Slide rule Abacus Pencil and paper Sticks/Stones Fingers

19 Progression Model Example: SGMM Smart Grid Maturity Model Characteris6cs: Features you 3 would expect to see at each stage of the smart grid journey SMR Strategy, Management, & Regulatory OS Organization & Structure GO Grid Operations WAM Work & Asset Management TECH Technology CUST Customer VCI Value Chain Integration SE Societal & Environmental

20 Benefits and Limitations of Progression Models Benefits v Provides a transformative roadmap v Simple to understand and adopt; low adoption cost v Easy to recalibrate as technologies and practices advance Limitations v Levels are arbitrarily defined and may be meaningless v Achieving higher levels does not necessarily translate into maturity v Often confused with CMMs thus users inaccurately project traits of CMMs on progression models

21 Capability Maturity Models (CMM) A more complex instrument Characterizes the maturity of processes the degree to which processes are institutionalized the degree to which the organization demonstrates process maturity the maturity of the culture of the organization Levels reflect the degree to which a particular set of practices have been institutionalized Institutionalized processes are more likely to be retained during times of stress. CERT Resilience SEI SERIES A CERT BOOK CERT -RMM, Version 1.1 CERT Resilience Management Model Richard A. Caralli Julia H. Allen David W. White A Maturity Model for Managing Operational Resilience

22 What do these organizations have in common? Customer Happiness Chain of Command Unit Cohesion Regulations Strong Culture Customer Service Tradition Protection

23 CMM Levels An Example Processes are acculturated, defined, measured, and governed Prac,ces are performed Prac,ces are incomplete Level 3 Defined Level 2 Managed Level 1 Performed Level 0 Incomplete Higher degrees of institutionalization translate to more stable processes that are repeatable produce consistent results over time are retained during times of stress

24 CMM Levels Another Example Example 3 Optimized Measured Defined Repeatable Ad hoc Nonexistent Continuous and effective, integrated, proactive, usually automated Well-managed, formal, often automated, evaluated frequently Intuitive, not documented, occurs only when necessary Intuitive, not documented, occurs only when necessary Occasional, not consistent, not planned, disorganized Not understood, not formalized, need is not recognized

25 Examples of CMM Levels Example 1 Optimized Quantitatively Managed Defined Managed Ad hoc Example 2 Externally integrated Internally integrated Managed Performed Initiated Example 3 Shared Defined Measured Managed Planned Performed but ad hoc Incomplete

26 Capability Maturity Model Example: CERT-RMM Framework for managing and improving opera6onal resilience an extensive super-set of the things an organization could do to be more resilient. - CERT-RMM adopter

27 CMM Example: CERT-RMM CERT-RMM Process Areas (Domains) Access Management Asset Definition and Mgmt. Communications Compliance Controls Management Enterprise Focus Environmental Control External Dependencies Financial Resource Mgmt. Human Resource Management Identity Management Incident Management & Control Knowledge & Information Mgmt. Measurement and Analysis Monitoring Organizational Process Focus Organizational Process Definition Organizational Training & Awareness People Management Resilience Requirements Development Resilience Requirements Mgmt. Resilient Technical Solution Engr. Risk Management Service Continuity Technology Management Vulnerability Analysis & Resolution

28 CMM Example: CERT-RMM Consider the Incident Management and Control (IMC) domain from CERT-RMM: Goal 1: Establish the IMC process Goal 2: Detect events Goal 3: Declare incidents Goal 4: Respond to and recover from incidents Goal 5: Establish incident learning

29 CMM Example: CERT-RMM Level 0 Level 1 Level 2 Level 3 Incomplete Performed Managed Defined..... We don t do (all of) the prac6ces. We do the prac6ces. Ins,tu,onaliza,on is cumula,ve We do the prac6ces AND we plan and govern the process, resource it, train people to do it, monitor it, etc We do everything in level 2 AND we have a defined process and collect improvement informa6on.

30 Benefits and Limitations of CMMs Benefits v Provides for measurement of core competencies v Provides for rigorous measurement of capability the ability to retain core competencies under times of stress v Can provide a path to quantitative measurement Limitations v Sometimes difficult to understand and apply; high adoption cost v Maturity may not translate into actual results v Potential false sense of achievement: achieving high maturity in security practices may not mean the organization is secure

31 Compare: Progression vs CMM Level 3 Run Level 3 Defined Level 2 Jog Level 1 Walk Level 0 Crawl Core prac6ces Distribu,on of core prac,ces across levels Level 2 Managed Level 1 Performed Level 0 Incomplete Core prac6ces Distribu,on of ins,tu,onalizing features Progression Model Capability Model

32 Hybrid Maturity Model Combines the best features of progression and capability maturity models Allows for measurement of evolution or achievement as in progression models Adds the ability to measure capability or institutionalization with the rigor of a CMM Levels reflect both achievement and capability Transitions between levels: Similar to a capability model (i.e., describe capability maturity) Architecturally use the characteristics, indicators, attributes, or patterns of a progression model

33 Hybrid Maturity Models Domains: Specific categories of azributes, characteris6cs, pazerns, or prac6ces that form the content of the model Domain 1 Domain 2 Domain 3 Domain 4 Domain n Capability or maturity levels Level 4 Defined Level 3 Measured Level 2 Managed Level 1 Planned Level 0 Incomplete Maturity levels: Defined sets of characteris6cs and outcomes, plus capability considera5ons Model content: Specific azributes, characteris6cs, pazerns, or prac6ces that represent progression and capability

34 Hybrid Model Example: ES-C2M2 Electricity Subsector Cybersecurity Capability Maturity Model (ES- C2M2)

35 Benefits and Limitations of Hybrid Models Benefits v Provides for easy measurement of core competencies as well as approximation of capability v Can adapt easily to evolution of technologies and practices without sacrificing capability measurement Limitations v Maturity concept is approximated; not as rigorous as CMM v Combination of attributes with institutionalizing features at each level can be arbitrary v Low adoption cost

36 Closing Thoughts A few cautions Determining when and which type to use

37 First and Foremost Have a clear understanding of your business objectives for using any type of improvement model How the model will meet these objectives Understand how this initiative fits with others that are mainstream for the organization (not a new add-on) Have visible sponsorship of executives and senior leaders who are essential for success Have well-defined outcome measures that are regularly reported and reviewed Have a plan and committed resources

38 A Few Cautions Progression models may be easier to adopt but may not be sustainable (aka sticky) Definitions of levels can be arbitrary Measuring process performance and maturity is useful but may not be sufficient Exercise care when using maturity models for specific purposes

39 Progression Models May Not Be Sustainable A progression model provides a roadmap or scale of a particular characteristic, indicator, attribute, pattern, or practice Focuses on practices or controls and their progression from least mature to most mature Cannot be used to measure the extent to which an organization is capable of sustaining the practice in times of disruption and stress (the practice has not become part of the DNA) A hybrid or capability maturity model adds the dimension of organizational capability to practice progression Thus able to measure an organization s resilience in the presence of disruption and stress

40 Definitions of Levels Can Be Arbitrary Often defined by consensus of subject matter experts Can simply reflect a plateau or a place in a progression or scale Often have not been validated or are difficult to validate based on experience and measurement May neglect to represent the capability and capacity of an organization to sustain operations in the presence of disruption and stress 40

41 Measuring Process Performance May Not Be Sufficient Experience demonstrates that the quality of the process directly affects the quality of the product However, process performance and maturity are only one aspect Also need to consider the performance and maturity of The product and its outcomes The supporting technologies The environment within which the product operates Knowledge, skills, and abilities of people with respect to all of these Which of these dimensions to emphasize given product objectives 41

42 When Does It Make Sense to Use Maturity Models? Requirement for a structured approach Demonstrated, measurable results based on an established body of knowledge A defined roadmap from a current state to a desired state An ability to monitor and measure progress, particularly in the presence of change Response to a strategic improvement or new product/new market objective 42

43 When Does It Make Sense to Use Maturity Models? (cont.) Desire to answer these questions in a repeatable, predictable manner: How do I compare with my peers? (ability to benchmark) How can I determine how secure I am and if I am secure enough? How do I measure my current state? Characterize my desired state? What concrete actions do I need to take to improve? And in what order? How do I measure progress toward my desired state? How do I adapt to change? 43

44 Exercise Care When Using Maturity Models If the immediate need is to respond to an in-progress disruptive event Robust processes are not yet in place Current protection and defensive mechanisms are failing Need to stop the bleeding, stabilize operations, rely on experts In response to current and new compliance requirements In a highly regulated industry Must demonstrate compliance with specific laws, regulations and standard(s) Standard, defined processes and mapping new compliance requirements to these can be quite effective 44

45 References Crosby, P. B. (1979). Quality is Free. New York: New American Library. ISBN Nolan, R. L. (July 1973). "Managing the computer resource: A stage hypothesis". Comm. ACM 16 (7): doi: / Humphrey, W. S. (March 1988). "Characterizing the software process: A maturity framework". IEEE Software 5 (2): doi:10.119/ Humphrey, W. S. (1989). Managing the Software Process. SEI series in software engineering. Reading, Mass.: Addison-Wesley. ISBN Paulk, Mark C.; Weber, Charles V.; & Curtis, Bill. The Capability Maturity Model: Guidelines for Improving the Software Process. Addison- Wesley Professional, CMMI Overview. (2012). Chris McClean and Khalid Kark, Introducing the Forrester Information Security Maturity Model, Forrester Research, July 27, Caralli, Richard A.; Allen, Julia H.; & White, David W. CERT Resilience Management Model: A Maturity Model for Managing Operational Resilience. Addison-Wesley, Caralli, Richard A. Discerning the Intent of Maturity Models from Characterizations of Security Posture. Software Engineering Institute, Carnegie Mellon University, Electricity Subsector Cybersecurity Maturity Model. Carnegie Mellon University, %20Subsector%20Cybersecurity%20Capabilities%20Maturity%20Model%20%28ES-C2M2%29%20-%20May% pdf Smart Grid: Tools and Methods. (2012). Resilience Management. (2012).

46 As projects continue to grow in scale and complexity, effective collaboration across geographical, cultural, and technical boundaries is increasingly prevalent and essential to system success. SATURN 2012 will explore the theme of Architecture: Catalyst for Collaboration. Introduction to the CERT Resilience Management Model February 18-20, 2014 (SEI, Arlington, VA) June 17-19, 2014 (SEI, Pittsburgh, PA) See Materials Widget for course document