Block 5 — Market Sizing

Block 5 — Market Sizing
Strategic Market Intelligence for Zoho ZeptoMail Brazil
Research Blueprint · Analytical Skeleton
"Market Architecture defines the universe. Market Sizing converts that universe and its observable transactional signals into an estimate of economic opportunity."
5.0 — 5.1
Why Market Sizing Matters & Master Universe
The objective is not simply to produce a number, but a defensible, traceable and uncertainty-aware estimate.
5.1 — Master Market Universe
The pipeline constructs the starting population from:
Identity
CNPJ · Company name · State · Municipality
Classification
CNAE · Sector · Estimated company size
Maturity
Digital maturity · Transactional maturity · Domain
CNPJ is the primary company-level identifier. The universe must be deduplicated and auditable.
5.2 — Market Universe Enrichment
From Cadastral Universe to Evidence-Enriched Market
Enrichment Signal Set
The objective is to move from a cadastral company universe toward an evidence-enriched transactional market universe.
DNS Layer
MX · SPF · DKIM · DMARC
Provider Layer
Email provider signals · Technology stack
Feature Layer
Public digital features · Transactional feature taxonomy
5.3 — 5.4
Transactional Signal Taxonomy & TEPS
5.3 — Signal Architecture
~22 transactional-event indicators map observable signals to propensity and volume potential.
Not every signal is observable for every company.
5.4 — TEPS
Transactional Email Propensity Score — estimates the propensity of a company to generate or require transactional email activity based on observable evidence.
TEPS thresholds and distributions are not defined in this blueprint.
Input
Observable company evidence
Output
Propensity level → Market eligibility
5.5 — 5.6
Maturity Dimensions & Evidence Quality
5.5 — Digital & Transactional Maturity
Both are analytical inputs to estimation — not proxies for email volume.
5.6 — Evidence Quality & Confidence
Market estimates must distinguish observed evidence from inferred or modeled values.
Digital Maturity
Breadth of digital presence and infrastructure
Transactional Maturity
Depth of transactional email-relevant activity
Evidence Grade
0 – 3 scale
Evidence Level
A – E classification
Provenance
Source documentation · Traceability · Validation audits
5.7 — Sample Design & Representativeness
Statistical Governance of the Market Sample
The pilot of ~10,000 stratified companies serves as an operational research input, not the final market universe.
Governance Metrics
Coverage
n / N ratio
Divergence
KL divergence · χ²
Sample Quality
Effective sample size (n_eff)
Monitoring
Enrichment failure tracking · Stratification signals
5.8 — 5.13
Volume, Revenue & TAM / SAM / SOM
Estimation Chain
All modeled quantities are labeled as estimates. No numerical values are inserted at this stage.
Segmentation Dimensions
The market estimate is analyzable across all dimensions present in the master database:
Sector · CNAE
Company size · Geography
Digital maturity · Transactional maturity
Transactional propensity (TEPS)
TAM → SAM → SOM transitions must each be explicitly documented, auditable, and grounded in evidence — not arbitrary percentages.
5.14 — 5.15
Statistical Robustness & Model Validation
5.14 — Robustness Pipeline
The final report must communicate uncertainty ranges, not only point estimates.
5.15 — Validation
Validation Audits
Precision · Recall · F1 where applicable
Evidence Levels A–E
Linked to provenance and traceability
Rejection Definition
Explicit criteria for excluding records
Locked Estimate
Post-recalibration final output
1
Raw Estimation
2
Winsorization
Outlier / extreme-value control
3
Bootstrap
4
Calibration → Ablation → Recalibration
5.16 — End-to-End Pipeline
Market Sizing — Master Architecture
This is the central methodological architecture of Block 5. Each stage is traceable, auditable and linked to the Market Intelligence Pipeline capabilities.
5.17 — 5.20
Deliverables, Risks & Research Questions
Deliverable Structure
01
Market Universe
02
Volume · Revenue · TAM · SAM · SOM
03
Segment-level Estimates
04
Assumptions · Evidence Quality · Robustness · Uncertainty · Limitations
No values populated at this stage.
Key Research Questions
What is the relevant Brazilian company universe for transactional email?
1.How many companies show meaningful transactional email propensity?
2.What email volume and economic value does this universe represent?
3.What are the TAM, SAM and SOM?
4.Where is the opportunity concentrated?
5.How robust are the estimates, and what are the principal sources of uncertainty?
6."The objective is not to produce a single market number, but a defensible range of market opportunity supported by observable evidence, explicit assumptions and statistical validation."