Tell us what to change or add.
Open a decision below. Check the area, period, inputs, result and proposed next step.
Use Change example to try different values. Use Data needed to check the fields and sources. The land-use change decision has its own comparison views.
Record your corrections below, then download your answers or print them.
Check reported development overlap with a cited landslide-hazard zone.
Validation required
Fictional default example · 2025.
What the selected record shows. The supplied overlap is 18 ha within the 75 ha assessed footprint, or 24%. Check the cited boundary and source records before interpreting the overlap.
Next step. Check the matching footprint, source boundary and applicable conditions. Prepare overlap review in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
A reported overlap supports referral; it does not establish site safety or permission.
100 × union of constraint overlap / proposal footprint. Count intersecting constraint areas once. The areas/counts are supplied records; this decision view does not calculate intersections, distances or locations.
Geometry preparation must use matching coordinate systems, dated boundary editions and valid spatial predicates. Overlap supports referral; it does not determine ownership, permission or site safety. A static reference image does not verify these supplied measurements or boundaries.
Other required records: Site polygon; hazard map edition; slope; development type; investigation requirement.
Calculation appendix
Find missing edition, scale and classification details in a hazard layer.
What the selected record shows. The required evidence is incomplete for this hazard-map updates case. The items below identify what must be obtained or reconciled.
Next step. Obtain the missing evidence listed below. Prepare evidence request in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Complete metadata do not establish fitness for a particular engineering design.
Check each required item and retain its reference. A documented item is not a scientific, legal or institutional approval.
Evidence completeness alone cannot establish suitability, eligibility, safety, permission or method validity.
Other required records: Map coverage; edition date; new incidents; terrain changes; survey need.
Review supplied asset matches to a dated hazard footprint.
What the selected record shows. The supplied overlap is 18 assets within the 75 assets assessed footprint, or 24%. Check the cited boundary and source records before interpreting the overlap.
This example does not run a spatial exposure analysis or predict damage.
100×distinct spatially matched receptors / receptors in the same frame. Count a receptor once across overlapping areas; do not invent hectare areas from points. The areas/counts are supplied records; this decision view does not calculate intersections, distances or locations.
Other required records: Asset geometry; susceptibility class; vulnerability evidence; map accuracy; occupancy.
Review rainfall observations and their reference periods for specialist interpretation.
What the selected record shows. Observed value: 104 mm.
Next step. Check source and period comparability before using the trend. Prepare trend report in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
A rainfall pattern alone does not supply an authorised warning trigger.
Display observations in dated order. Sample SD uses n−1; coefficient of variation = 100 × SD / positive mean.
Match definitions, methods, grade, location and reference basis. Gaps are not joined. Descriptive variation is not a forecast, causal effect or significant trend.
Other required records: Dated landslides; rainfall series; antecedent conditions; station coverage; uncertainty.
Check reported cracks, movement and inspection evidence before engineering referral.
What the selected record shows. The required evidence is incomplete for this slope inspections case. The items below identify what must be obtained or reconciled.
The page does not diagnose slope stability or declare a site safe.
Other required records: Slope ID; movement observations; cracks; seepage; dated inspection; approved limits.
Identify overdue or missing instrument observations.
What the selected record shows. Completeness: 80 %. Check overdue observation.
Next step. Check overdue observation. Prepare observation request in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Observation age alone does not establish movement or immediate danger.
Completeness = 100 × valid / expected. Age = assessment date − latest valid observation; compare with the explicitly supplied interval.
A recent observation does not fill earlier gaps. Unknown schedule or observation time cannot establish freshness.
Other required records: Sensor ID; cadence; last observation; calibration; fault history; criticality.
Compare stabilisation choices using the investigation evidence and site constraints.
What the selected record shows. There is not enough information to choose this option. Obtain the records and evidence about conditions listed below. The supplied budget less cost is 300,000 LKR.
Next step. Obtain the missing records before choosing. Prepare evidence request in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Budget and descriptive benefits cannot determine a safe engineering design.
Compare each alternative's stated benefit, adverse effects, domain evidence and mandatory constraints. Where cost and budget are supplied, budget balance = budget − option cost. A budget balance alone does not determine domain feasibility or select an option.
Other required records: Site investigation; failure mechanism; designs; costs; land access; maintenance.
Follow up unresolved relocation issues and participation barriers.
What the selected record shows. 16 unresolved issue(s). 71.579% responded; response is not consent. Review the issue references and participation barriers.
Responses or attendance do not establish informed consent or resolve rights.
100 × distinct respondents / invited people. Record unresolved issues individually; one respondent may raise several issues.
Response, attendance and silence are not consent. Participation does not transfer decision authority or settle rights.
Other required records: Hazard evidence; household needs; feasible sites; rights; consultations; approvals.
Find missing source records in a site-clearance request.
What the selected record shows. The required evidence is incomplete for this construction conditions case. The items below identify what must be obtained or reconciled.
The prototype issues no clearance or construction permission.
Other required records: Clearance version; condition checklist; construction evidence; inspection dates; engineer.
Compare supplied ground-investigation results and their matching definitions.
What the selected record shows. Difference: -10 mm.
Next step. Reconcile the original records using their source references. Prepare source comparison in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Differences require source and site checks before an engineering interpretation.
Later/comparison value minus Earlier/source value. Relative change = 100 × difference / Earlier/source value when the earlier value is positive.
Keep both originals, units, scope, method, calibration and correction history. A difference does not identify which source is correct; no automatic averaging or overwrite.
Other required records: Boreholes; laboratory results; stratigraphy; locations; methods; uncertainty.
Check rainfall, movement and observation conditions before an authorised warning review.
What the selected record shows. The required evidence is incomplete for this early warning evidence case. The items below identify what must be obtained or reconciled.
A checklist is not a warning threshold or a publication authority.
Show the hazard, exposure and verified controls separately. No generic score, probability, diagnosis, site clearance or official warning is derived from a count.
Other required records: Rainfall; soil moisture; movement; approved thresholds; forecast; duty authority.
Identify tests and inspections whose recorded response is overdue.
What the selected record shows. Open days past due: 29 days. Follow up overdue case.
Next step. Follow up overdue case; confirm the missing condition evidence. Prepare evidence request in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Age alone does not establish engineering urgency or a safe operating condition.
Open age = assessment date − received date. Days past due = max(0, assessment date − recorded due date) for open cases. Show documented critical conditions separately.
Example due dates are not legal service standards. Do not alter statutory deadlines by silently subtracting pauses, or infer severity from age alone.
Other required records: Sample ID; required test; receipt date; urgency; due date; laboratory capacity.
Check the evidence behind a reported road-cut stability concern.
What the selected record shows. The required evidence is incomplete for this road slopes case. The items below identify what must be obtained or reconciled.
No failure probability or construction design is inferred.
Other required records: Road segment; slope condition; traffic exposure; drainage; failure history; access.
Check post-failure assessment tasks against resources and dependencies.
What the selected record shows. Planned duration: 3 days. Resolve overlapping resource bookings.
Next step. Resolve overlapping resource bookings. Prepare schedule review in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
The example does not assign investigators or permit access to a hazardous site.
Check start/end order, operating window, effort, predecessor completion and overlapping bookings for the same resource. A conflict is flagged; no optimal schedule is invented.
Other required records: Incident ID; access restrictions; exposed assets; investigators; priority; weather.
Compare drainage choices using the stated slope investigation and constraints.
Drainage benefits must be supported by site-specific engineering evidence.
Other required records: Seepage; runoff; drainage condition; slope mechanism; proposed works; costs.
Check whether supplied model inputs reproduce the reported probability.
What the selected record shows. Difference: -0.03 probability. Investigate reproduction difference.
Next step. Investigate reproduction difference. Prepare reproduction-check note in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Reproduction does not validate the model or establish a new site probability.
Reproduced minus expected result, within an explicitly supplied absolute tolerance, using the same exact input/method versions and a separate checker. Retain originals, code, parameters and environment evidence.
Scalar reproduction does not demonstrate model discrimination, calibration, transferability or site safety.
Other required records: Training incidents; independent validation; predictors; resolution; model version; uncertainty.
Compare stabilisation outcomes in the supplied observation groups and periods.
Verified published formula · Difference-in-differences arithmetic
What the selected record shows. Treatment change: 17; comparison change: 7; difference in changes: 10 mm. This comparison alone does not establish causation or benefit.
A difference in changes does not establish a causal treatment effect.
(Treatment after−before) − (comparison after−before), using the same outcome definition and periods.
The arithmetic alone does not establish causation. Design, parallel trends, confounding, attrition, uncertainty and adverse effects need appropriate evidence.
Other required records: Baseline movement; post-work movement; rainfall; controls; maintenance; observation dates.
World Bank · Impact Evaluation in Practice Second EditionInstitution publication · Chapter 7, table 7.2, printed page 140, PDF page 170
The formula is verified. Causal interpretation still requires a defensible study design, comparison and assumptions.
Find missing terrain, material and source details for an investigation.
What the selected record shows. The required evidence is incomplete for this land-use advice case. The items below identify what must be obtained or reconciled.
A complete evidence list is not a stability assessment.
Other required records: Development footprint; geology; slope; hydrology; hazard edition; uncertainty.
Find locations with no confirmed access to the relevant building guidance.
What the selected record shows. 30 households are known to be uncovered; 5 have unknown coverage. 65% are confirmed covered.
Next step. Check the records behind the uncovered and unknown groups. Prepare coverage follow-up in the prototype creates a visible, downloadable draft. It is unassigned and not sent.
Recorded distribution does not establish compliance or safer construction.
100 × distinct covered eligible units / eligible frame. Known uncovered = frame − covered − unknown.
Count each eligible unit once for the selected service and period. Received messages, attendance, adoption and outcomes are separate measures.
Other required records: Exposure frame; outreach attendance; verified understanding; location; warning access.
Identify investigation applications past their recorded response date.
A deadline does not establish the technical risk or grant an application.
Other required records: Application ID; missing evidence; received date; due date; assigned reviewer.
Check which existing source fields can supply the decision inputs.
Existing form reference: 3c6e0cfb0e978318
Existing form reference: ea62ecace985e67d
Existing form reference: 5b9dbec4b87332bc
Your institution has its own document and image library. Use the same library for reports, photos and other evidence.
Open this screen for National Building Research OrganisationSee the presentation example
Files added in the prototype stay in this browser. Public sharing is an access preview. Existing public reference links already work online.
Data structure keeps the existing source tree, records, charts and map. Manage structure adds a place to propose changes to definitions.
An entity type means a kind of thing or event, such as a reservoir or an inspection. Drafts stay in this browser. A demo approval does not change real definitions, data, chart links or sharing rights.
User management shows example profiles for each institution. People and Roles and access let you review the proposed account screens.
These are interface previews only. They create no account, send no email and change no access. Use example details in the preview. Institution verification does not grant a real permission.
We currently use public data and published reports where available. Please confirm whether your institution can provide data directly, so we can avoid retyping or reading figures from PDFs.
Do not enter passwords, access keys or private account details.
Use the Download answers button at the top of this page. Share the downloaded file or printed copy through your agreed review channel. Nothing is sent automatically.