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Classification of Products – A Practical Guide to Product CategorizationClassification of Products – A Practical Guide to Product Categorization">

Classification of Products – A Practical Guide to Product Categorization

Alexandra Blake, Key-g.com
av 
Alexandra Blake, Key-g.com
11 minutes read
Blogg
december 16, 2025

Choose a single, durable taxonomy for goods to enable automated tagging and scale analytics across channels. This directly informs assortment choices and lets teams compare performance by category.

Similarly, motive and purpose should align with data sources to achieve speed, clarity, and cost efficiency for the broader value of the catalog. Even small datasets can inform initial buckets if labels remain simple.

Begin with six to eight top-level buckets built on physical attributes, cost, and typical use. Items that share these signals can be categorized quickly, while a broader taxonomy remains for longer-tail goods.

Use a lightweight model to assign labels automated and gather feedback to fine-tune the structure. This approach helps teams tag new items quickly and preserves a clear purpose for each bucket.

Each label supports help for downstream analytics and faster decisions.

Monitor cost per bucket and the effect on speed, accuracy, and broader value. If another item appears, it can be placed into the flexible tail, and the approach enables scale to new catalogs, channels, and markets. The aim is to help teams work directly with data, using the model to improve value across goods and channels.

Concrete steps for a pragmatic goods taxonomy

Concrete steps for a pragmatic goods taxonomy

Recommendation: Build a two-axis taxonomy that links audience motive to product families. Use a centralized mapping that flows across platforms and locations, with lines of items under a single, coherent framework. Tag items with standardized attributes so customers and professional buyers can find them quickly, and ensure the audience and motive drive recommendations rather than material alone.

Step 1: Define the audience and problem space. Plan to devote 25 minutes to consumer interviews across fall ranges and capture motive types: functional, emotional, and status. Translate those motives into search intents so items surface by need, not just by material. Map these intents to families such as clothes and antique items to ground the taxonomy in real-use cases.

Step 2: Establish families and lines. For final customer needs, group items into families (clothes, antique, specialized gear, and everyday supply items). Under each family, create lines by price tier and supply availability, using only attributes that help find items quickly. This keeps the catalog scalable while aligning with audience budgets and pricing expectations, with professional touch where relevant.

Step 3: Define attributes and standards. Capture essential details: size, color, material, condition, location, and pricing. For antique items, include era and provenance; for clothes, include fabric and fit. Normalize attribute labels across locations and platforms so search and filters behave consistently, enabling consumers to compare items quickly. Use only necessary attributes to avoid bloat.

Step 4: Create tagging rules. Use a two-level approach: primary category and secondary attributes. Example: primary clothes with tags like winter coat, size M, color navy; primary antique with tags like 19th century, porcelain, condition good. Link motives to tags to surface benefits such as durability, authenticity, or affordable pricing.

Step 5: Automate tagging. Implement rules to apply tags when new SKUs flow into the supply system. Integrate automated feeds across platforms and locations, including a telus data feed if available. Ensure tagging updates fall under governance windows to prevent drift and keep the lines clean for final decision-making.

Step 6: Validation and pilot. Run a three-location pilot to verify findability and relevance for both consumers and the customer-facing team. Track metrics: average time to identify, search-to-click rate, cross-sell lift, and perceived benefits. Use feedback to prune axes and drop non-value attributes.

Step 7: Governance and maintenance. Define data ownership, update cadence, and change-control rules. Schedule quarterly reviews to accommodate seasonal changes in fall and new inventory lines. Ensure antique items and clothes stay accurately tagged, and avoid over-segmentation that makes the final taxonomy hard to maintain.

Step 8: Deployment and integration. Align with pricing strategies and inventory planning. Expose the final taxonomy to customers via platforms and store locators, ensuring that search and browse paths remain intuitive. Use the taxonomy to power recommendations and to guide professional buyers toward complementary items and supply options.

Step 9: Final checks and benefits realization. Verify that every item is categorized and linked to audience motive and problem solved. Confirm improvements in findability, customer experience, and pricing accuracy across platforms. Document lessons for the next iteration to keep the audience informed and engaged.

Define clear criteria for category boundaries

Define clear criteria for category boundaries

Start with a proper, data-driven boundary model: identify item families by core function and intended use, then refine with browsing signals and supply factors to separate edge cases.

Build a clear framework that consists of observable attributes, aligned to systems and teams: the core category should be stable while the periphery adapts to new items.

Between categories, set thresholds that are easy to audit and automate: an intuitive decision flow follows a simple rule: if an item matches two or more factors, categorize into the stronger fit category; otherwise assign to only the closest match.

Center the thinking on consumers, user, and merchants: design boundaries where browsing is intuitive, where user experience is smooth, where merchants can plan supply and respond to demand.

Align with company goals: the approach should improve discoverability and reduce overlap, support aggressive merchandising activities, and cut friction across offering teams.

Governance and maintenance: establish cross-functional teams that include analytics, marketing, and operations; they ensure boundaries reflect thought, market realities, update boundaries where data shows overlap, and rely on formal criteria to categorize items. Track performance over time and adjust.

Design a scalable taxonomy with distinct levels

This here approach scales across cloud, on-prem, and hybrid platforms, with a three-tier structure: Level 1 for industry-agnostic domains, Level 2 for use-case families, and Level 3 for specific offerings, all governed by a single nomenclature here.

Define criteria and metadata for each level: Level 1 groups by core capabilities, avoiding implementation details; Level 2 captures distinct features and intangible attributes, such as reliability and interoperability; Level 3 lists concrete, production-ready items with measurable specs. When new items appear, map them so you can categorize quickly and ensure direct mapping to the deepest level that satisfies all features and intangible attributes. This helps ensure items are categorized correctly and very quickly.

Adopt a canonical nomenclature to align teams across production, cloud, and platforms. Names should be concise, unambiguous, and common across departments; this reduces misalignment and increases efficiency. Track buys as a KPI to surface which categories win, guiding where to invest next, and knowing the problem areas that deserve attention.

Design the levels with distinct scopes: Level 1 broad industry domains; Level 2 functional groups with defined features; Level 3 concrete offerings with defined production attributes. This separation supports shorter iteration cycles and easier governance because changes at Level 2 or 3 don’t destabilize Level 1. In practice, as you add new items or services, you can place them quickly and consistently, and it directly improves search, reporting, and cross-team collaboration; this increases overall efficiency and helps capture common patterns that deliver benefits to the whole organization. This separation provides a very stable basis for decision-making.

Governance practices: maintain a lean, cross-functional committee, schedule fixed cadences for reviews, and ensure the data model plays well with downstream system components. The data model can play with other governance layers for consistent outcomes. Store the taxonomy in a centralized system, cloud-based repository to support search, filters, and integrations across platforms; this approach improves consistency, and addresses the need for a scalable setup that supports growth and acquisitions while reducing complexity.

Map product attributes to primary categories

Align each attribute to three primary buckets: base essentials, high-end, and niche specialties. Use a digits-based score 0–9 to quantify fit, and devote attributes to the most relevant level. Let a digits-based scoring guide drive decisions across listings and channels, based on this bucket approach.

To implement, identify attributes that drive category placement: uses, materials, care requirements, lifecycle, price band, and compatibility. Establish levels (1–3) and map to digits: 1–3 base, 4–6 mid, 7–9 high-end. Identifying top signals helps resolve overlaps; when two attributes pull in opposite directions, favor long-term usage and maintenance implications. Follows a standardized coding approach to keep operations predictable and scalable.

Illustrative mapping by sectors: sneakers with high-end materials and specialized care wind into the high-end bucket; casual sneakers with standard fabric and simple washing instructions may stay in base. For furniture, emphasize finish, upholstery durability, and long-term upkeep; attributes like stain resistance and cleanability influence placement. Lubricants used for home appliances or machinery are classified by uses and compatibility: consumer-grade products lean base, professional-grade lean niche. Use a standardized title to reflect core features and a complete listing of attributes to support marknadsföring and promotional efforts. Another practical pattern: tie each item’s attributes to its core use case to improve discoverability.

Operations playbook: tag each item with a short category_code derived from the bucket, follow this with a concise listing of core attributes, and align marknadsföring messages to the bucket. Maintain a unique attribute tag scheme to avoid duplicates across channels. Follow a regular cadence of audits to keep levels aligned with market shifts; adjust thresholds for long-term, high-value segments if needed. For furniture, focus on finish and texture; for sneakers, highlight materials and care like washing; for lubricants, list uses and compatibility; ensure promotional activities are synchronized with the title and the overall category strategy.

Handle overlaps, bundles, and edge cases with rules

Implement a deterministic rules engine that resolves overlaps by mapping each item to the most intended categorization, using tie-breakers such as brand priority and shoppers-path likelihood.

  1. Overlap resolution rules
    • Score each candidate category by signal match: product attributes, intended use, brand relevance, and shopper intent signals.
    • Resolve by highest match; if tie, apply another tie-breaker such as channel priority or system confidence, and if they remain level, choose the category with higher path conversion probability.
    • Store decisions in a centralized dataset with justification notes for traceability and future audits.
  2. Bundles and branded schemes
    • Flag bundled SKUs with a bundle tag and map them to a dedicated bundles catalog; label them as separate shopping journeys to promote, not as generic items.
    • Create distinct hierarchical paths for bundles and individual items to preserve margin; ensure promotional campaigns leverage branded bundles where brand affinity exists.
    • For non-branded or co-branded bundles, apply a neutral mapping to prevent cannibalization of the primary branded category.
  3. Edge cases and fallbacks
    • New brands or items with sparse signals: for an instance, assign to an intended fallback category based on closest attribute match; later refine as data accrues in the dataset.
    • Manufacturer-specific schemes: maintain a manufacturer mapping to reduce misclassification; when multiple schemes exist, prefer the one with higher strategic fit to the shopper experience.
    • Ambiguous items: if attributes suggest multiple paths, present two possible routes briefly and route a post-click conversion signal to determine the final categorization.
  4. Data governance and organization
    • Maintain an organization-wide rules registry; update after each quarterly dataset review; document changes and the rationale so analysts can audit decisions.
    • Numerous tests across datasets: run backtests to ensure intended outcomes align with observed conversion and margin.
    • Further, capture insights from shoppers to refine rules and reduce friction in shopping paths.
    • Once a rule proves robust, propagate it across all channels to ensure a consistent experience.
  5. Monitoring, metrics, and ongoing improvement
    • Track cohort conversion by path and monitor margin impact after rule changes; compare branded vs generic promotion performance.
    • Set thresholds: if a rule reduces conversion by more than a predefined percentage or margin by more than a target, trigger a rollback and review the underlying evidence.
    • Regularly review edge cases and update the dataset with fresh signals to keep categorization aligned with current shopping behavior.

Schedule quarterly reviews of the rules and dataset; therefore, align with shopper behavior and margin goals.

Set up QA checks and ongoing validation for accuracy

Automate nightly QA comparisons between classifier outputs and a gold-standard subset for a representative batch of existing listings to provide rapid detection without manual review.

Set a target accuracy of 98% on the validation set, and track false positives and false negatives to gauge likelihood of mislabeling across marketplaces with millions of listings.

Involve the organization’s management, data science, and taxonomy teams to review flagged cases and update the classifier or mapping rules where needed, ensuring durable labeling decisions across supply channels.

Use a two-layer validation loop: automated checks that compare predicted categories with ground truth, plus periodic human validation of edge cases such as broad versus narrow positioning and drift caused by new listings.

Document dataset provenance, version changes, and deployment canaries to measure impact on browsing experience, conversions, and supplier performance before broad rollout.

Knowing something about listing context, such as price bands, supplier reliability, and browsing behavior, helps set thresholds that reduce mislabeling while keeping speed, because millions of customers make buys based on accurate placement.

Metrisk Mål Data Source Frequency Owner
Classifier accuracy ≥98% validation set, gold-standard subset daily ML Ops
False positives <2% flagged cases vs. ground truth daily QA Lead
False negatives <2% same daily QA Lead
Drift from baseline ≤1.5% per month drift detector monthly Data Science
Impact on browsing metrics no decrease in session quality web analytics weekly UX & Analytics

When a mismatch is found, follow a lean workflow: provide the rationale, because mislabeling risks harming user experience, adjust the mapping logic, re-run the validation, and monitor whether changes affect the broad marketplace positioning and their shoppers’ behavior.