INTERACTIVE / DETERMINISTIC RULE ENGINE

Architecture
Decision Lab 2.0

Shape a workload, expose impossible combinations, and compare three defensible architectures. Everything runs locally in your browser—no AI, account, or backend.

01 / CONSTRAINTS

Shape the workload

TRAFFIC SHAPE

Baseline requests / second10,000100 → 1,000,000 requests/secondRead / write mix80% / 20%Reads on the left, writes on the rightBurst multiplierAverage payload size2 KB1 KB → 1 MB per request or eventWorkload shapeTarget p99 latency

CORRECTNESS + RESILIENCE

ConsistencyAvailability targetDurability targetOrdering requirementGeographic footprintReplica factor

DATA ECONOMICS

Retention period30 days1 → 365 daysExpected compression

SAVED LOCALLY

Saved designs stay in this browser.

02 / DECISION OUTPUT

Recommended starting point

CONSTRAINT CHECK

Feasibility before architecture

1 RISK

WARNING

Availability depends on one region

A multi-zone design may meet normal failures, but a regional event exceeds the requested availability posture.

PEAK READ / WRITE16,000 / 4,000requests per second

READ / WRITE DATA31.3 / 7.8 MB/speak payload throughput

DAILY LOGICAL0.3 TBbaseline writes

PHYSICAL DATA17.4 TBcompression + replicas + 20%

PARTITIONS3at ~70% utilization

BROKERS3throughput + hot storage

EDGELoad Balancer

→

COMPUTEStateless Service

→

BUFFERDurable queue with replay

→

STATERelational database with synchronous replicas

D01 / DATA

Relational database with synchronous replicas

D02 / CACHE

Versioned read-through cache

D03 / STREAM

Durable queue with replay

D04 / STORAGE

Object storage as durable archive

D05 / REPLICATION

3-copy synchronous replication across availability zones

D06 / READ PATH

Edge routing → cache → regional read model

03 / OPTION SPACE

Compare, do not guess

Fit is deterministic and relative to the current constraints.

OPTION0%

Architecture option

latency0/5

consistency0/5

availability0/5

cost0/5

simplicity0/5

STRENGTH
RISK

OPTION0%

Architecture option

latency0/5

consistency0/5

availability0/5

cost0/5

simplicity0/5

STRENGTH
RISK

OPTION0%

Architecture option

latency0/5

consistency0/5

availability0/5

cost0/5

simplicity0/5

STRENGTH
RISK

PRESSURE POINTS

EXPLICIT TRADE-OFFS

04 / INTERVIEW DEFENSE

Defend the design

Prompts change with the workload. Reveal the talking point only after answering.

Q01

Architecture defense question

Q02

Architecture defense question

Q03

Architecture defense question

Q04

Architecture defense question

NEXT STEP

Validate assumptions with measurements.

Open the fundamentals path →