Risk Event Modeling Intaver Institute Inc. 303, 6707, Elbow Drive S.W, Calgary, AB, Canada Tel: +1 (403) 692-2252 Fax: +1 (403) 459-4533 www.intaver.com 4280 East Tamiami Trail, 302-M, Naples Florida, 34112, USA Tel: +1(510) 984 3527

The Project Management Problem Many projects are unsuccessful! Budget Schedule Quality Other measures Projects consistently fail to meet: 2009 Intaver Institute

The Project Management Problem Key Project Management Issues How to estimate project duration or cost? What are the most critical risks and how to handle them? How to measure project performance? How to make an informed decision about the future course of the project? 2009 Intaver Institute

The Project Management Problem Reasons Human psychological limits Inadequate training Poor processes other 12/6/2018 2009 Intaver Institute

The Project Management Problem Risk management key to project success Risks are events that can occur during a project that changes to course of a project Risk is key source of project uncertainty and major root cause of project failure Limited ability to forecast and manage project uncertainty due to risk 2009 Intaver Institute

The Project Management Problem Chains of unfortunate events Risks can form event chains A risk occurs and causes another risk to occur, which causes yet another Unexpected result of a series of events derail projects Statistical sampling or Monte Carlo simulations the best solution for modeling the effect of related and unrelated project risks 2009 Intaver Institute

Understand impact of risk on projects Benefits Understand impact of risk on projects Understand project risk and uncertainty in Cost and Duration Identify critical risks and activities Model risk handling efforts Improved contingency and buffer plans Monitoring with risks and uncertainties provides strong, early signals of impending issues 2009 Intaver Institute

Risk Event Modeling Workflow Uses common PM artifacts WBS Resources Costs Risk Register or Risk Lists developed for qualitative risk management Why is this easy 2009 Intaver Institute

Risk Definition Risks Risks are “events” that have a probability of occurring during a project Risks are identified and assigned to tasks or resources Define impact of risks by assigning: Chance of occurrence Outcome (e.g. delay, increase in cost) Result (percentage or fixed value of outcome) 2009 Intaver Institute

What is Monte Carlo Monte Carlo simulation is a mathematical method used in risk analysis. Monte Carlo simulations are used to approximate the distribution of potential results based on probabilistic inputs.

Monte Carlo Simulations

Monte Carlo Schedule Analysis

Two Approaches to Estimating Probabilities The relative frequency approach, where probability equals the number of occurrences of specific outcome (or event) divided by the total number of possible outcomes. The subjective approach represents an expert’s degree of belief that a particular outcome will occur.

Two Approaches for Defining Uncertainties Distribution-based approach Event-based approach

Which Distribution Should Be Used? Also useful: Lognornal Beta

Distribution Fitting

Before Eliciting Judgment You Need to Have: A clearly defined problem An identified list of risks, or a risk breakdown structure, for the project A project schedule A clearly defined set of questions you will ask experts In addition, your team of experts should be aware of any personal interest that expert may have regarding particular issues. It helps to mitigate motivational biases.

Psychological Factors Availability heuristic: people judge the probability of the occurrence of events by how easily these events are brought to mind. Anchoring heuristic: refers to the human tendency to remain close to the initial estimate. Wishful thinking: when we overestimate the probabilities of opportunities and underestimate the probabilities of risks.

Overestimating the Probability of Compound Events If the probability of a defect in a component is 20% and the device uses three redundant components, the probability of the defective device will be (0.2 * 0.2 * 0.2) = 0.008%. People tend to think this number is much higher.

Ignoring Base-Rate Frequencies Historically, the probability that a particular component will be defective is 1%. The component is tested before installation. The test showed that the component is defective. The test usually successfully identifies defective components 80% of the time. What is the probability that a component is defective? The correct answer is close to 4%, however, most people would think that answer is a little bit lower than 80%.

Eliciting Probabilities of Events Pose a direct question: “What is the probability that the project will be canceled due to budgetary problems?” Ask the experts two opposing questions: (1) “What is the probability that the project will be canceled?” and (2) “What is the probability the project will be completed?” The sum of these two assessments should be 100%. Break compound events into simple events and review them separately.

Probability Wheel

Eliciting Judgment: Probability Method

Eliciting Judgment: Method of Relative Heights

How Many Trials Are Required? Huge number of trials (> 1000) usually does not increase accuracy of analysis Incorporate rare events Use convergence monitoring

What Is The Chance That a Project Will Be on Time and Budget?

Analysis of Monte Carlo Results Sensitivity and Correlations Critical Indices Crucial tasks Critical Risks Probabilistic Calendars Deadlines Conditional Branching Probabilistic Branching Chance of Task Existence

Identify critical risks and tasks Analyze Results Risk Scores Overview with and without risks Detailed results of analysis View results Sensitivity Crucial Tasks Success Rate Risk Chart Identify critical risks and tasks Risk Matrix 12/6/2018 2009 Intaver Institute

Project Gantt When you have project schedule and risk breakdown structure ready click here to perform Monte Carlo simulations 12/6/2018 2009 Intaver Institute

Risk Register Pre-mitigation Probability, Impact, And Score Risk register is central point of entry into risk analysis and management system Shows calculated project risk scores – ranks and identifies critical project risks. Add two screen shots. Risk Register Risk Assignment Add slide with Risk Mitigation Waterfall diagram with descriptive names 12/6/2018 2009 Intaver Institute

Result Gantt Chart White bars represent original project schedule (no risks) Blue bars represent project schedule with risks Change to put calculated results in the Result Gantt chart Because of risks, project duration significantly increased 12/6/2018 2009 Intaver Institute

Results of Risk Analysis Project Summary: project duration, cost, and finish time with and without risks Results of analysis for project cost, finish time, and duration Double click on any chart to view detailed information 12/6/2018 2009 Intaver Institute

Detailed Results of Analysis Detailed results can be shown for each tasks or whole project for cost, duration, start time, finish time, and income. Move the slider to determine the chance that project will be within budget Detailed results show certainty levels or the chance that a project parameter will be a certain value. Allows you to see the values e.g. managing at 75% certainty as well as setting buffers or contingencies. Get detailed statistical data Data can be exported as an image or text

Sensitivity Critical risks need to be mitigated first Tornado chart shows risks or other parameters that have the most affect on the project schedule

Crucial Tasks Crucial tasks for project cost and duration can be different Crucial tasks have the most affect on the project schedule

Success Rate A task can be canceled if it reaches a task or a project deadline or if it is affected by risk with a “Cancel task” outcome. Calculates the success rates of tasks or project based upon deadlines or constraints Success rate is calculated based on number of times the task is not canceled

Risk Chart Risk chart show risks, associated with task versus duration or cost This task has cost and high risk These tasks have balanced risk versus Cost ratio.

Risk matrix shows probability/impact on 5x5 matrix Double-click on a risk to view risk assignments Risk Probability, Impact and Score for the current schedule

Risk Planning Modeling risk mitigation efforts Risk handling strategies Transfer Mitigate Eliminate Ignore Risk mitigation efforts represent their own costs etc. which must be accounted for Create multiple baselines that model pre and post mitigation risk handling efforts View results of risk handling efforts Select project alternative based on criteria (cost, duration, start and finish time, success rate)

Additional Resources Project Think: Intaver Institute 2011 Additional Resources Project Think: Why Good Managers Make Poor Project Choices Project Decisions: The Art and Science Introduction to Project Risk Management and Decision Analysis Project Risk Analysis Made Ridiculously Simple