Predictika · Fitted kitchen quotes

An AI sales agent's fitted kitchen quote, checked before it goes out

An AI sales agent prepares a quote for a Howdens fitted kitchen: the range, the layout, the run of base units, the hob and its extraction, the oven and fridge housings, the dishwasher and the ceiling. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of kitchen planning rules and returns a verdict, every reason and the figures it computed.

Scope: Howdens fitted kitchens in the Greenwich, Clerkenwell, Elmbridge and Hockley ranges with Lamona hobs, ovens, fridges and dishwashers: run length and filler gap, hob and extractor, housings, services, ceiling and island aisles. See everything this validator covers

This validator models the planning of a fitted kitchen quote with Howdens ranges and Lamona appliances, not just the scenarios shown below.

  • The run — the base units against the wall run, the filler gap (at most 150 mm, and a wide one goes to a person), and the gap the quote states.
  • Hob and extraction — the hob must fit its base unit, induction and gas hobs need a hood at least as wide as the hob and the minimum clearance above (650 mm induction, 750 mm gas), and a downdraft hob needs plinth ducting. A hob on an island goes to a person.
  • Housings and services — a double oven needs a tall housing, an integrated fridge needs a tall unit, an integrated dishwasher must be within 1,500 mm of the sink, and worktop pieces are limited to 3,000 mm.
  • The room — the ceiling against wall units (with 100 mm or less to spare going to a person) and tall units, and a 1,000 mm aisle round an island or peninsula.

Any kitchen quote for these ranges that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (no price build-up), door colors and handles, other Howdens ranges, individual Lamona model numbers, and fitting. The range names, the Lamona brand, the island and peninsula layouts and the appliance types are from howdens.com listings; every dimension and planning rule here is modeled from standard UK fitted-kitchen practice and is not a Howdens-published rule.

The AI sales agentBuilds the kitchen quote from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
A hob that must fit its unit, with a hood at least as wide and the right clearance aboveOnly with workarounds
Width, hood and clearance depend on the hob type and sit on different lines, so cross-line rules that interact are needed.		Hob type, unit, hood and clearance are in one request and checked together.
A tall housing for a double oven or an integrated fridgeOnly with care
A companion-item rule per appliance, kept in step as the appliance range changes.		Appliances and housings are checked on every call.
Stated filler gap that must equal run minus base unitsOnly with care
A stated figure is a free-entry field; a rule can compare it with a computed gap, but only if the sums are built into the rules.		The stated gap travels with the quote and is compared with the computed gap on every call.
Ceiling height against wall units, tall units and tight fitsOnly with care
Arithmetic across lines with a tolerance band that sends tight fits to a person.		The ceiling arithmetic is computed and the tight band becomes an approval finding.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the quote is saved or a step is completed, so a designer often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The base units total 3,700 mm and the wall run is 3,600 mm.
2A filler gap of 150 mm is wide; a person should confirm it looks right.
3The base units leave a 151 mm gap on the run; a filler panel covers at most 150 mm, so another unit or a wider unit is needed.
4A filler gap of 100 mm is wide; a person should confirm it looks right.
5The quote states a 50 mm filler gap; the run and base units give 0 mm.
6The 800 mm hob does not fit a 600 mm base unit.
7An induction or gas hob needs a cooker hood and the quote has none.
8The 60 cm hood is narrower than the 80 cm hob.
9There are 649 mm above the hob and this hob type needs at least 650 mm.
10There are 749 mm above the hob and this hob type needs at least 750 mm.
11A downdraft hob needs ducting through the plinth and the quote has none.
12A double oven needs a tall oven housing unit.
13An integrated fridge or fridge freezer needs a tall housing unit and the quote has none.
14The integrated dishwasher is 1,501 mm from the sink; water and waste connections reach 1,500 mm.
15The ceiling is 2,200 mm high and wall units of 900 mm high need at least 2,250 mm.
16The wall units fit the ceiling with 50 mm to spare; a person should confirm on site.
17The ceiling is 2,180 mm high; a tall unit needs at least 2,200 mm.
18The aisle round the island or peninsula is 900 mm; at least 1,000 mm is needed.
19The hob is on the island; a person should confirm the extractor route to the ceiling or an island hood.
20A worktop piece of 3,200 mm is longer than the 3,000 mm worktop length.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Island kitchen: Island kitchen with a gas hob, a wide gap and a distant dishwasher

    
The agent's request. Please quote a Howdens Clerkenwell kitchen with an island layout: base units totaling 4,000 mm on a 4,200 mm wall run, with a gas hob (90 cm) in a 600 mm base unit, 700 mm below the hood or wall unit, no cooker hood, an under-counter oven housing and a freestanding fridge, and an integrated dishwasher 1,800 mm from the sink. The ceiling is 2,400 mm and the wall units are 720 mm high, with a 900 mm aisle round the island. The longest worktop piece is 3,000 mm. The quote states a 200 mm filler gap. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Gap too wide to fill. The base units leave a 200 mm gap on the run; a filler panel covers at most 150 mm, so another unit or a wider unit is needed.
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  • Hob wider than its base unit. The 900 mm hob does not fit a 600 mm base unit.
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  • Hob needs an extractor. An induction or gas hob needs a cooker hood and the quote has none.
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  • Not enough clearance above the hob. There are 700 mm above the hob and this hob type needs at least 750 mm.
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  • Dishwasher too far from the sink. The integrated dishwasher is 1,800 mm from the sink; water and waste connections reach 1,500 mm.
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  • Not enough aisle round the island. The aisle round the island or peninsula is 900 mm; at least 1,000 mm is needed.
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2. Island kitchen: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Howdens Clerkenwell kitchen with an island layout: base units totaling 4,150 mm on a 4,200 mm wall run, with a gas hob (90 cm) in a 1,000 mm base unit, 800 mm below the hood or wall unit, a 90 cm cooker hood, an under-counter oven housing and a freestanding fridge, and an integrated dishwasher 900 mm from the sink. The ceiling is 2,400 mm and the wall units are 720 mm high, with a 1,100 mm aisle round the island. The longest worktop piece is 3,000 mm. The quote states a 50 mm filler gap. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Run summary. 4,150 mm of base units on a 4,200 mm run, leaving a 50 mm filler gap.
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3. Double oven and fridge: Double oven and integrated fridge under a low ceiling

    
The agent's request. Please quote a Howdens Greenwich kitchen with a straight run: base units totaling 3,200 mm on a 3,300 mm wall run, with an induction hob (60 cm) in a 600 mm base unit, 700 mm below the hood or wall unit, a 60 cm cooker hood, an under-counter oven housing for a double oven and an integrated fridge freezer with no tall unit. The ceiling is 2,200 mm and the wall units are 900 mm high. The longest worktop piece is 3,000 mm. The quote states a 100 mm filler gap. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Double oven needs a tall housing. A double oven needs a tall oven housing unit.
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  • Integrated fridge needs a tall unit. An integrated fridge or fridge freezer needs a tall housing unit and the quote has none.
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  • Ceiling too low for the wall units. The ceiling is 2,200 mm high and wall units of 900 mm high need at least 2,250 mm.
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  • Wide filler to confirm. A filler gap of 100 mm is wide; a person should confirm it looks right.
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4. Double oven and fridge: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Howdens Greenwich kitchen with a straight run: base units totaling 3,200 mm on a 3,300 mm wall run, with an induction hob (60 cm) in a 600 mm base unit, 700 mm below the hood or wall unit, a 60 cm cooker hood, a tall oven housing for a double oven and an integrated fridge freezer with a tall unit. The ceiling is 2,250 mm and the wall units are 720 mm high. The longest worktop piece is 3,000 mm. The quote states a 100 mm filler gap. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • Wide filler to confirm. A filler gap of 100 mm is wide; a person should confirm it looks right.
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  • Run summary. 3,200 mm of base units on a 3,300 mm run, leaving a 100 mm filler gap.
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5. Double oven and fridge: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Howdens Greenwich kitchen with a straight run: base units totaling 3,250 mm on a 3,300 mm wall run, with an induction hob (60 cm) in a 600 mm base unit, 700 mm below the hood or wall unit, a 60 cm cooker hood, a tall oven housing for a double oven and an integrated fridge freezer with a tall unit. The ceiling is 2,250 mm and the wall units are 720 mm high. The longest worktop piece is 3,000 mm. The quote states a 50 mm filler gap. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Run summary. 3,250 mm of base units on a 3,300 mm run, leaving a 50 mm filler gap.
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6. Peninsula hob: Peninsula with a long worktop piece and a hob on the peninsula

    
The agent's request. Please quote a Howdens Elmbridge kitchen with a peninsula layout: base units totaling 3,600 mm on a 3,600 mm wall run, with an induction hob (80 cm) in a 800 mm base unit, 700 mm below the hood or wall unit, a 90 cm cooker hood, an under-counter oven housing and a freestanding fridge. The ceiling is 2,400 mm and the wall units are 720 mm high, with a 1,100 mm aisle round the peninsula. The hob is on the peninsula. The longest worktop piece is 3,400 mm. The quote states a 0 mm filler gap. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Worktop piece too long. A worktop piece of 3,400 mm is longer than the 3,000 mm worktop length.
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  • Hob on the island to confirm. The hob is on the island; a person should confirm the extractor route to the ceiling or an island hood.
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7. Peninsula hob: The agent resubmits after fixing the errors

    
The agent's request. Please quote a Howdens Elmbridge kitchen with a peninsula layout: base units totaling 3,600 mm on a 3,600 mm wall run, with an induction hob (80 cm) in a 800 mm base unit, 700 mm below the hood or wall unit, a 90 cm cooker hood, an under-counter oven housing and a freestanding fridge. The ceiling is 2,400 mm and the wall units are 720 mm high, with a 1,100 mm aisle round the peninsula. The longest worktop piece is 3,000 mm. The quote states a 0 mm filler gap. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Run summary. 3,600 mm of base units on a 3,600 mm run, leaving a 0 mm filler gap.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares a quote for a Howdens fitted kitchen: the range, the layout, the run of base units, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of kitchen planning rules and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
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  3. The agent says. Please quote a Howdens Clerkenwell kitchen. The ceiling is 2,400 mm and the wall units are 720 mm high, with a 900 mm aisle round the island. The rest of the request is on screen.
    4. 
      
  4. Before it goes out, the agent calls the validator.
    5. 
      
  5. Blocked, with six findings, all in one answer. The base units leave a 200 mm gap on the run; a filler panel covers at most 150 mm, so another unit or a wider unit is needed. The 900 mm hob does not fit a 600 mm base unit. An induction or gas hob needs a cooker hood and the quote has none. The other three are on screen.
    6. 
      
  6. The validator returned six blocking findings in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for a hob that must fit its unit, with a hood at least as wide and the right clearance above, a rules-based CPQ can do this only with workarounds.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the base units in total to 4,150 mm, the base unit under the hob to 1,000 mm, the clearance above the hob to 800 mm, the cooker hood to 90 cm and the stated filler gap to 50 mm. Two more changes are on screen.
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  10. It calls the validator again.
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  11. This time the validator clears it.
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  12. All six earlier findings are cleared, and the validator's figure matches the quote.
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  13. Six problems caught in one call, fixed in one pass, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer. Now you can try the other scenarios yourself.
    14.