What-if scenario analysis (WISA) is a powerful strategic planning and decision-making tool. Simulating different scenarios and their potential outcomes allows you to anticipate risks, identify opportunities, and make informed decisions.
This analytical approach helps you analyze the impact of changes in variables such as market conditions, economic trends, or operational strategies. You can prepare for uncertainties, optimize resource allocation, and enhance resilience through what-if analysis.
In today’s article, I will explain the “what-if scenario analysis,” its applications, and how it can help you achieve your objectives.
What-if Scenario Analysis (WISA)
WISA is also known as “what-if analysis” or “deterministic simulation.”
According to the PMBOK Guide, “What-if scenario analysis is the process of evaluating scenarios in order to predict their effect, positive or negative, on project objectives. This is an analysis of the question, “What if the situation represented by scenario X happens?”
What-if scenario analysis evaluates the possible outcomes of different hypothetical situations. By altering variables within a model, this analysis helps predict the impact of various changes on an organization’s performance.
It helps you simulate scenarios like market shifts, economic fluctuations, or operational changes, providing insights into possible future states. This technique aids in strategic planning, risk management, and decision-making by allowing you to anticipate challenges and opportunities, optimize strategies, and prepare for uncertainties.
Organizations that are proactive about risks and uncertainties create consistency and stability. A what-if scenario analysis helps do this.
A scenario is a possible event or several events that can affect your objectives.
A what-if scenario analysis can involve a basic analysis of the effect of changing the duration of one or more tasks. This can include generating projections based on past performance, integrating duration uncertainty, conducting a budget, and assessing schedule risk.
When is What-If Scenario Analysis Useful?
What-if scenario analysis is helpful in strategic planning and decision-making. It lets you explore the potential outcomes of various decisions and external factors. It is beneficial in risk management, helping you anticipate and mitigate potential threats.
This technique is also valuable in financial planning, enabling businesses to assess the impact of market fluctuations, investment choices, and budget changes. It also helps improve operational efficiency by simulating the effects of process adjustments or resource allocation.
What-if scenario analysis provides critical insights in dynamic and uncertain environments, supporting informed, proactive, and resilient strategies.
Benefits of What-If Scenario Analysis
1. Predictability is Improved: A what-if analysis involves speculative reasoning about how a problem could be addressed in the future. The more questions you ask, the greater your ability to anticipate problems. This means that the outcome will be predictable.
2. Well-informed Decisions and Actions: What-if analyses can help you make better-informed decisions. They inform us of any anticipated problem, allowing us to adapt efficiently and make well-informed decisions.
3. Factor Analysis is Made Possible: What-if scenario analysis assesses the impact of changing the elements of your objectives. It can be used to analyze an infinite number of possibilities. A simplified approach to what-if analysis may also be utilized to gather the essential information quickly.
4. Assessment of Potential Outcomes: You can use what-if scenario analysis to understand how changes in an element impact the outcome. This gives a better understanding of potential risks and challenges and their influence.
5. Simplifies Project Management: This method offers solutions for every possible development. What-if scenarios help you picture all possible complications, letting you choose an approach with several paths to your intended outcome, irrespective of the twists and turns.
6. Financial Planning Advantages: Using what-if scenario analysis in budgeting helps you calculate cost requirements for best-case and worst-case situations, improving your planning and resource allocation. It also reduces the chances of your project going over budget.
7. Demand Planning: What-if analysis helps in long-term and short-term demand planning. Scenario planning lets you prepare for unexpected events and uncover solutions for disruptions. It assists you in identifying cost-efficient and effective ways to carry out operations and projects.
8. Inventory Planning: Based on the outcome of the what-if analysis, you can decide whether to expand inventories. What-if scenarios give you a visual picture of the requirements for smooth operation. You can ensure that their inventory is neither piling up nor lacking.
Limitations of What if Scenario Analysis
A few limitations of what-if scenario analysis are as follows:
1. Data Quality: The accuracy of the analysis depends on the quality and completeness of the data used. If the data quality is poor, the results can be misleading.
2. Assumptions and Biases: The analysis relies on assumptions that may introduce biases, affecting the reliability of the outcomes.
3. Complexity and Resources: Building and analyzing complex scenarios can be resource-intensive and time-consuming, requiring specialized skills and tools.
4. Static Nature: It often fails to account for dynamic interactions between variables, which can oversimplify real-world complexities.
5. Unpredictable Variables: Not all variables can be anticipated or accurately modeled, leading to potential gaps in the analysis.
6. Overconfidence: Relying too heavily on scenario outcomes can create a false sense of security, ignoring the unpredictability of actual events.
What-If Scenario Analysis Using Monte-Carlo Analysis
The Monte-Carlo analysis is a form of WISA. It simulates countless combinations of different scenarios using computer software.
Since Monte Carlo requires many simulations, you cannot do it manually.
You must enter different parameters and variables in the software. The Monte Carlo simulates possible scenarios and gives you the likelihood of achieving the objectives.
The simulation indicates the following key objectives:
1. The Likelihood of Completing Project On Time
The Monte Carlo analysis can provide the following results: The probability of finishing the project on June 1st is 80%, the probability of finishing the project on July 1st is 90%, and the probability of finishing the project on August 1st is 95%.
The further away the deadline is, the higher the likelihood of the project being completed on time.
2. The Likelihood of Completing the Project On Budget
The scenario analysis may show that you have a 75% chance of finishing the project with one million USD, an 85% chance of finishing the project with 2.5 million USD, and so on.
Example of What-If Scenario Analysis
A WISA aims to see what occurs if specific actions are performed, allowing you to examine which outcomes favor your project goal.
For example, if a firm is experiencing staff turnover, it may require a new hiring strategy. They may come up with several scenarios and assess the pros and cons of each:
- Providing each employee with a personalized bonus depending on their performance. The benefit is improved staff productivity. A drawback is that it may cause employees to become competitive.
- As often as possible, collaborate with freelancers. The benefit of doing this is that freelancers will be paid only when required. A drawback is that they will be less devoted to the firm.
- Offer all temporary staff permanent contracts. The benefit is that these team members are already aware of their expectations, which improves loyalty. The downside is that it is costly, and firing a permanent employee who does not perform well becomes more challenging.
The organization can make decisions based on the scenarios outlined above. The main objective is not to be limited to just one solution but to consider all options.
What-If Scenario Analysis in Excel
Often, what-if analysis requires mathematical calculation, and you can use Microsoft Excel for this purpose.
Excel utilizes the Forecast command group on the Data tab to assist you in constructing simple predictions or project models. For example, you may use the What-If Analysis button to predict the project budget.
This command alters cell values to examine how such adjustments impact the formulae results on the worksheet.
Scenarios, Data Tables, and Goal Seek are three types of What-If Analysis tools in Microsoft Excel. Data tables and scenarios use input parameters to predict what could happen.
1. Scenario in Excel
A scenario is a series of data that Excel maintains and may automatically swap. You can generate and store multiple data sets on an Excel worksheet, then flip to each to see alternative outcomes.
You can gather workbooks and integrate scenarios. After collecting all scenarios, you can compile a Scenario Summary Report.
2. Goal Seeking
Goal Seek is Excel’s basic sensitivity analysis tool.
Let’s assume you know your desired result; Excel’s Goal Seek function enables you to get there by mathematically changing a single variable in the equation.
Just one variable input value is used in Goal Seek.
The Solver add-in can estimate several input values, such as the amount borrowed and the loan installment payment amount.
3. Data Tables
You may use a data table to examine the results of a formula that utilizes one or more variables or several formulae that use a shared variable.
Data tables make it simple to analyze many options at a glance. The results are straightforward and tabular since you only focus on one or two factors. The data table can have only two variables; you can use scenarios if you want more than two variables.
4. What-if Scenario Manager
Scenario Manager is another tool for what-if analysis in Excel.
This tool is an advanced version of Goal Seek because it lets you change several variables simultaneously.
Here are the steps to generate an analysis report:
Choose the output cells you wish to monitor (result cells). In the original set of values, these cells contain formulae. The formulae make use of the variable input cells.
Define the set of values and specify the input cells you wish to alter (the changing cells).
Name each scenario and fill in the values for each scenario’s changing input cells.
Conclusion
What-if scenario analysis is invaluable for organizations managing uncertain and dynamic environments. By simulating various potential outcomes, you can gain crucial insights into the effects of different decisions and external factors. This technique enhances strategic planning, risk management, and resource optimization, empowering you to make proactive choices.
Using what-if scenario analysis develops resilience and agility, enabling organizations to anticipate better and respond to changes.
Since this technique is given in the PMBOK Guide, you may see questions about it on your PMP exam.
I am Mohammad Fahad Usmani, B.E. PMP, PMI-RMP. I have been blogging on project management topics since 2011. To date, thousands of professionals have passed the PMP exam using my resources.
