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Analytics Lab / Business Intelligence

Power BI: Default vs Engineered

Requirements shape the engineering.

TEMPLATE / LAB CONCEPT

Explore how increasing analytical requirements can change report, semantic-model, interaction, and implementation design. This is a template, not a completed comparison or professional case study.

Power BI
DAX
Power Query / M
Semantic models

Problem

Analytical requirements

Template / evidence pending

The specific analytical question, users, defect or limitation, and acceptance criteria are pending. No inherited-report defect is claimed.

System context

Template / evidence pending

SYSTEM CONTEXT PLACEHOLDER / conceptual boundaries only

Source & processes
Inputs and business rules pending
Data & semantic model
Relationships and transformations pending
Report interface
Interactions and user requirements pending
Decision & feedback
Validation criteria pending

Constraints

Boundaries to establish

Template / evidence pending

Record access constraints, available data, model ownership, compatibility, performance needs, maintenance responsibilities, and delivery limits before comparing designs.

Approach

Inherited report: diagnose before enhancing

A proposed troubleshooting sequence, not evidence of a completed repair.

Template / evidence pending

INHERITED POWER BI REPORT / PROCESS CONCEPT

Observe
What is it doing?
Reproduce
Can I reliably reproduce the defect?
Decompose
Visual, DAX, filter context, relationship, Power Query, source, or data quality?
Trace
Follow the behavior backward through the system.
Root cause
What is actually producing the symptom?
Repair
Make the smallest defensible correction.
Validate
Did we fix the defect without creating another one?
Enhance
Now that the system is understood, what can safely be improved?

Architecture

Explore architecture

Semantic model

Template / evidence pending

SEMANTIC MODEL PLACEHOLDER / no implemented model represented

Inputs
Source definitions pending
Transformation
Rules and quality checks pending
Relationships
Grain and model design pending
Measures
Business logic and context pending

Implementation

Explore implementation

DAX placeholder

Harmless template syntax only; not a real business measure.

Template / evidence pending

TemplateMeasure = BLANK()

This returns no analytical value. Real requirements and validation evidence are pending.

Power Query placeholder

Harmless empty-table example; no source systems or credentials.

Template / evidence pending

let
    Source = #table({"Example"}, {})
in
    Source

This produces an empty example table. No professional implementation is represented.

Demonstration

Different requirements, different design choices

The comparison will examine where additional engineering complexity is justified. Neither approach is inherently better for every requirement.

Template / evidence pending

Standard / default approach

Standard Power BI demonstration pending.

Standard Power BI

Template / evidence pending

[ SCREENSHOT PLACEHOLDER ]Evidence pending

Future evidence; no completed report is shown.

Implementation notes & characteristics

Implementation notes pending.

Requirements and technical characteristics pending

Engineered approach

Engineered Power BI demonstration pending.

Engineered Power BI

Template / evidence pending

[ SCREENSHOT PLACEHOLDER ]Evidence pending

Future evidence; no completed report is shown.

Implementation notes & characteristics

Implementation notes pending.

Requirements and technical characteristics pending

Difference: The specific difference and its evidence are pending.
Why it matters: Different analytical requirements can justify different engineering complexity.
Trade-off: Complexity, maintainability, and user requirements will be assessed against evidence.
When to use each: Selection criteria will follow once the requirements and demonstrations are defined.

Interactive comparison report

The existing standalone public demo is not presented as this comparison.

Template / evidence pending

[ POWER BI EMBED PLACEHOLDER ]Evidence pending

Comparison report pending. Insert an approved public report URL only when its evidence is ready.

Future comparison dimensions

Interactions
Navigation
Bookmark architecture
Slicer patterns
Context-aware measures
Semantic models
Security / RLS
Parameter-driven analysis

Validation

Validation evidence

No measurements, test outcomes, or business results are claimed.

Template / evidence pending

Method: Evidence pending
Baseline: Evidence pending
Observed result: Evidence pending
Evidence source: Evidence pending

Engineering decisions

Explore engineering decisions

Engineering decision record

A record structure only; no actual decision or consequence is claimed.

Template / evidence pending

Decision: Evidence pending
Why: Evidence pending
Alternatives considered: Evidence pending
Trade-off: Evidence pending
Validation / consequence: Evidence pending

Supporting artifacts

Explore supporting artifacts

Video walkthrough

Future narrated explanation; captions and transcript will accompany the video.

Template / evidence pending

[ VIDEO WALKTHROUGH PLACEHOLDER ]Evidence pending

Technical presentation

Future deck; view and download actions become available when an artifact is supplied.

Template / evidence pending PowerPoint / PDF

[ PRESENTATION DECK PLACEHOLDER ]Evidence pending

Tutorial / supporting documentation

Future supporting artifact. No tutorial or downloadable technical package has been created.

Template / evidence pending PDF / documentation / sample package

[ DOWNLOADABLE ARTIFACT PLACEHOLDER ]Evidence pending