5.2: Plan of Attack
- Page ID
- 52229
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)๐ฏ Objective of This Milestone
You are now building a financial model for your project. This milestone requires you to translate the execution plan from Milestone 3 into a detailed, structured, and defensible budget—one that could be presented to a sponsor, finance lead, or procurement authority.
The final submission must include:
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A breakdown of all anticipated project costs (labor and non-labor)
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Calculated labor cost estimates based on prior effort figures
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Transparent pricing for tools, licenses, vendors, or materials
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Justified contingency buffering
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A clear, professional summary of what the budget enables
๐ What You Will Produce
Your final deliverable will consist of the following five core components:
| Section | Description |
|---|---|
| 1. Cost Inputs and Categories | A clear and comprehensive inventory of all cost-driving elements grouped by type |
| 2. Labor Cost Estimation | A detailed calculation of effort × role × rate, linked to the WBS |
| 3. Non-Labor Cost Estimation | Estimates for tools, subscriptions, training, travel, and other goods or services |
| 4. Total Budget and Allocation Model | Roll-up of all costs with subtotals, grand total, and structure by phase or category |
| 5. Contingency and Funding Narrative | A reasoned buffer based on risk, plus a summary that tells the “financial story” of your project |
๐งญ Step-by-Step Plan of Execution
๐น Step 1: Identify All Cost Categories and Inputs
Start with your WBS, architectural model, and execution plan. Build a working list of anything that will require funds, including:
๐ผ Labor
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Time spent by analysts, developers, PMs, testers, trainers
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Internal staff time billed to the project
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External consulting or contract staff
๐งฐ Non-Labor (examples)
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Software licenses (e.g., per-seat tools, design software, PM systems)
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Cloud platform or hosting services
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Specialized equipment or configuration tools
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Third-party vendors (data cleansing, trainers, accessibility services)
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Stakeholder events (e.g., pilot launches, training sessions)
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Travel, room bookings, meals (if in-person support is needed)
๐งพ Classification
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Direct vs Indirect: Is the cost tied directly to deliverables, or a shared overhead?
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Fixed vs Variable: Is the cost stable or usage-based?
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Recurring vs One-Time: Will this expense repeat monthly or occur once?
๐ Deliverable: A categorized table of all cost inputs with basic tags for classification.
| Item | Type | Classification | Description |
|---|---|---|---|
| Developer labor | Labor | Direct, Variable | 240 hours over 6 weeks |
| Training software | Non-labor | Fixed, Recurring | $25/user/month |
๐น Step 2: Estimate Labor Cost (Effort × Role Rate)
Take your task-level effort estimates from Milestone 3 and apply hourly rates based on:
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Internal rate card (e.g., C-Bay rates: PM = $110/hr, Dev = $95/hr, BA = $85/hr)
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Industry benchmarks (if rates not given—justify with source)
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Assumed team structure and availability (e.g., 50% allocation, 80% billable)
๐ Example Calculation:
Task: Conduct stakeholder interviews
Effort: 16 hours
Role: Business Analyst
Rate: $85/hr
→ Total Labor Cost = 16 × 85 = $1,360
Break this down:
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By task
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By role
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By project phase (optional)
๐ Deliverable: Labor Estimation Table
| WBS ID | Task | Role | Effort (hrs) | Rate | Cost | Notes |
|---|---|---|---|---|---|---|
| 1.2.1 | Conduct interviews | BA | 16 | $85 | $1,360 | Assumes 4 interviews @ 4 hrs each |
๐น Step 3: Estimate Non-Labor Cost
Using your Cost Inputs list from Step 1, calculate:
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Unit Cost × Quantity × Duration
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Research pricing benchmarks if real quotes are unavailable
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Document all assumptions (e.g., “$25/license/month based on vendor website”)
๐ Examples:
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12-month license for PM software: $30/user/month × 5 users = $1,800
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2 stakeholder training days @ $850/day = $1,700
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20 data transformation hours from vendor @ $150/hr = $3,000
๐ Deliverable: Non-Labor Cost Table
| Item | Category | Quantity | Unit Cost | Duration | Total Cost | Source |
|---|---|---|---|---|---|---|
| Cloud subscription | SaaS | 12 mo | $300 | N/A | $3,600 | Vendor X pricing sheet |
| Training session | Event | 2 | $850 | N/A | $1,700 | Industry avg training rate |
๐น Step 4: Build the Total Budget and Allocation Model
Create a consolidated view of:
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Labor cost total
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Non-labor cost total
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Contingency
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Grand total
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Optional: by phase, milestone, or deliverable
Use consistent structure. Clearly label rows and subtotals.
๐ Deliverable: Budget Roll-Up Table
| Phase | Labor | Non-Labor | Subtotal |
|---|---|---|---|
| Planning | $8,240 | $1,800 | $10,040 |
| Design | $14,100 | $3,400 | $17,500 |
| Implementation | $20,500 | $5,200 | $25,700 |
| Total (Pre-Contingency) | $42,840 | $10,400 | $53,240 |
Then calculate your contingency (see Step 5) and append it:
| Contingency (7.5%) | $3,993 |
|---|---|
| Grand Total | $57,233 |
๐น Step 5: Add Contingency and Write a Funding Narrative
Contingency
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Base your buffer on:
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Risk exposure
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Estimate uncertainty
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Task complexity
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External dependencies
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Apply it per category (e.g., 10% on non-labor, 5% on labor), not just an overall “fudge factor”
Narrative
Write a 1-paragraph financial summary from the point of view of a project leader presenting to a sponsor.
๐ Should answer:
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What is included?
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What is the basis of estimation?
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How does the budget account for risk?
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What value will this budget enable?
๐ Example:
“This budget reflects the full execution plan approved in Week 6. Estimates are based on actual effort projections and market-standard rates. Contingency has been applied based on risk factors tied to stakeholder input availability and third-party tool integration. This funding will support configuration, training, testing, and deployment of the UCMS platform and prepare the system for live use by the beginning of Q2.”
✅ Final Deliverables You Will Submit
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Cost Categories and Input Summary
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Labor Cost Estimation Table
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Non-Labor Cost Estimation Table
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Total Budget + Contingency Roll-Up
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Funding Narrative (1 paragraph)

