01The standard

A shopper comes to finish a job. Selva is measured by whether they finish it.

A mission is what the shopper came to do. Its path is a chain of moments, and a benchmark guards each one. The shopper succeeds only if every link holds, so the links multiply.

  • 74of 100 shoppers finish a ten-link mission when each link holds 97 times in 100.
  • 90finish when each link holds 99 times in 100. One in ten still fails.
  • 100finish only when every link holds every time. That is the gate.

Selva goes live on a store only when every mission passes on that store’s catalog, three runs of three. It answers only where the maker’s document settles the question, asks once when a fact about the vehicle decides it, and says so when the document can’t. Saying so is a correct answer, and it counts as one. The shares of sessions on this page come from Selva’s internal simulation of shoppers. A store’s own logs replace them.

See the record The 21 benchmarks

02The eight missions

What shoppers come to do, for auto parts. And the links each one has to cross.

The shares are for Jeep Wrangler JL sessions and come from Selva’s shopper model. They are modeled, and a store’s own logs replace them.

  1. 0125.2% of sessions

    Accessorize

    Add something to a vehicle that works today.

    The path
    ArriveSearch and browseJudge one partSettle the deciding factCheck the promise
    The benchmarks on it
    B1False fitsB2Hidden fitsB3HedgesB4Selector depthB6Recommendation leakageB7Search to partB9Price truthB10Delivery promiseB11Policy truthB14Legal truth
    Shoppers say
    Front bumper for my 2023 Gladiator RubiconTonneau cover for a 2021 F-150 SuperCrewA grille for my Wrangler with the front camera

  2. 0212.6% of sessions

    Upgrade

    Replace a working part with a better one.

    The path
    ArriveSearch and browseJudge one partSettle the deciding factAssemble the buildCheck the promise
    The benchmarks on it
    B1False fitsB2Hidden fitsB3HedgesB4Selector depthB5Ignored warningsB6Recommendation leakageB7Search to partB9Price truthB10Delivery promiseB11Policy truthB12Job completenessB14Legal truthB19Build compatibility
    Shoppers say
    Brake pads for a 2019 Mustang GT with the six-piston Brembos, under $200A leveling kit for my Gladiator on 35sRear brakes that clear a 17-inch wheel

  3. 0311.2% of sessions

    Replace

    Swap a worn or broken part for the right one.

    The path
    ArriveSearch and browseJudge one partSettle the deciding factCheck the promise
    The benchmarks on it
    B1False fitsB2Hidden fitsB3HedgesB4Selector depthB6Recommendation leakageB7Search to partB9Price truthB10Delivery promiseB11Policy truthB14Legal truth
    Shoppers say
    Rear pads for a 2020 Wrangler SaharaDriver side axle shaft for a 2021 GladiatorA valve stem for the tire sensor on a 2018 JL

  4. 049.8% of sessions

    Build

    Put together several parts that have to work with each other.

    The path
    ArriveSearch and browseJudge one partSettle the deciding factAssemble the buildCheck the promise
    The benchmarks on it
    B1False fitsB2Hidden fitsB3HedgesB4Selector depthB5Ignored warningsB6Recommendation leakageB7Search to partB9Price truthB10Delivery promiseB11Policy truthB12Job completenessB14Legal truthB19Build compatibility
    Shoppers say
    A 3.5 inch lift for a 2022 Wrangler Unlimited 4xe, with everything it needsWinch bumper, winch and fairlead for a JL37s on a Rubicon: what else has to change?

  5. 055.6% of sessions

    Verify fit

    Check one part against one vehicle before buying.

    The path
    ArriveJudge one partSettle the deciding factCheck the promise
    The benchmarks on it
    B1False fitsB2Hidden fitsB3HedgesB4Selector depthB6Recommendation leakageB9Price truthB10Delivery promiseB11Policy truthB14Legal truth
    Shoppers say
    Will this rear brake kit fit my 2022 Gladiator?Does this seat cover fit a 4xe?Does this skid plate fit a 2027?

  6. 063.5% of sessions

    Diagnose

    Start from a problem, not a part.

    The path
    ArriveSearch and browseHand offJudge one partSettle the deciding factCheck the promise
    The benchmarks on it
    B1False fitsB2Hidden fitsB3HedgesB4Selector depthB5Ignored warningsB6Recommendation leakageB7Search to partB9Price truthB10Delivery promiseB11Policy truthB14Legal truth
    Shoppers say
    Death wobble on a lifted JL: what do I replace?Grinding from the rear after new rotorsA check-engine light after a new intake

  7. 072.1% of sessions

    Complete

    Finish a job already started.

    The path
    ArriveJudge one partAssemble the buildCheck the promise
    The benchmarks on it
    B1False fitsB2Hidden fitsB3HedgesB4Selector depthB6Recommendation leakageB9Price truthB10Delivery promiseB11Policy truthB12Job completenessB14Legal truthB19Build compatibility
    Shoppers say
    What else do I need to install this lift?Fog lights for a bumper I already boughtThe wiring kit for a compressor mount

  8. 0830.0% of sessions

    Browse

    Look around, and come back. No purchase this session, so it counts as exposure.

    The path
    ArriveSearch and browseCome back
    The benchmarks on it
    B2Hidden fitsB7Search to partB8Self-contradictionsB13Machine-readable truth
    Shoppers say
    What fits a 2024 Wrangler?New parts for the GladiatorJeep gifts under $100

03Who has to finish

A link has to hold for the shopper who doesn’t know the answer. Most don’t.

Of 1,000 Jeep Wrangler JL sessions in Selva’s internal simulation, 700 come to buy. Of those, 156 can state the fact that decides fit, 486 can’t, and 58 will state it wrongly with confidence. A store that serves only the 156 passes a demonstration and fails the mission. So each benchmark is scored at every level of preparedness, and the gate is every question right, at every level.

Checked from outsideSix benchmarks

Three run whole tasks from the first word to the cart, including the unprepared shopper, so the product of the links has to land inside what they measure. One prices the time the path takes. Two run the same paths for assistive technology and for shopping agents.

What is not countedA floor

A moment that hasn’t been read on a store counts as perfect. Every gap Selva reports is therefore a floor, and more reading can only raise it.