Business Domain Connect
Track BNK · nine-layer framework

Banking domain knowledge for QA, BA and delivery teams

Deposits, loans and payments — the systems that move money safely every second.

10 sessionsSession 01 freeEnglish & TeluguBDC-BNK certificate
Start with Session 01 See the nine-layer framework

How the banking business actually flows

Deposits, loans and payments — the systems that move money safely every second. Every session in this track hangs off this one flow, so you always know which part of the business you are looking at.

  1. Customer onboarding
  2. Accounts & deposits
  3. Payments
  4. Lending
  5. Risk & compliance
  6. End-of-day & reporting

The nine layers of the Banking domain

Every BDC track answers the same nine questions in the same order, so knowledge from one domain transfers to the next. Here is what each layer looks like in Banking.

01 · D

Domain

Where are we?

Public, private, cooperative and small finance banks, NBFCs, payment networks and the central bank.

02 · B

Business

How does it make money?

Earn interest margin and fees. KPIs: net interest margin, CASA ratio, NPA %, cost-to-income.

03 · P

Process

How does the work flow?

Onboard (KYC) → Open account → Transact → Lend → Monitor risk → End-of-day close → Report.

04 · S

System

Which applications run it?

Core banking (CBS), internet & mobile banking, loan origination/management, payment switch, cards, AML, data warehouse.

05 · A

Data

What information matters?

Customer (CIF), account, general ledger, transaction, loan schedule, limits and KYC documents.

06 · I

Integration

How do systems talk?

UPI, IMPS, NEFT and RTGS rails, ISO 8583 and ISO 20022 messages, credit bureau APIs, SWIFT.

07 · X

Transaction

Follow one, end to end.

Customer pays ₹2,500 by UPI → PSP app → NPCI switch → Remitter bank debits → Beneficiary bank credits → Confirmation → Settlement & reconciliation

08 · T

Testing

How do we prove it works?

Interest & charges, EOD/BOD batches, date roll, reversals, reconciliation, security and fraud rules.

09 · R

Real-world scenario

What happens on a live project?

A timeout between the switch and core banking debits the customer but never credits the beneficiary. Build the reversal and reconciliation test pack.

Sessions in the Banking track

Ten sessions, one per framework layer, closing with a proctored certification assessment. Session 01 is free for everyone, in English and Telugu.

  1. BNK-S01

    How a Bank Makes Money

    Upcoming

    The business model in plain terms — deposits, lending, interest margin and fee income.

    • Retail, corporate and investment banking
    • Net interest margin
    • Fee and commission income
    • The balance sheet of a bank
    • NIM
    • CASA
    • NPA
    • Fee income
  2. BNK-S02

    The Banking Business Model

    Upcoming

    Interest margin, fee income and the ratios a bank is judged on.

    • Retail, corporate and investment banking
    • Net interest margin and CASA ratio
    • Fee and commission income
    • NPA and provisioning
    • Cost-to-income ratio
    • NIM
    • CASA
    • NPA
    • Cost-to-income
  3. BNK-S03

    Onboard, Transact, Lend, Monitor

    Upcoming

    The processes that run a bank, from KYC to end-of-day close.

    • Customer onboarding and KYC
    • Account opening and servicing
    • Payments and transactions
    • Lending and the credit lifecycle
    • Risk monitoring and end-of-day close
    • KYC
    • Account
    • Credit
    • EOD
  4. BNK-S04

    Banking Systems Landscape

    Upcoming

    Core banking and everything that surrounds it.

    • Core banking system (CBS)
    • Internet and mobile banking
    • Loan origination and management
    • Payment switch and card systems
    • AML, risk and the data warehouse
    • CBS
    • Switch
    • LOS
    • AML
  5. BNK-S05

    Banking Data

    Upcoming

    The records a bank is built on.

    • Customer (CIF) and account master
    • General ledger and balances
    • Transactions and value dating
    • Loan schedules and limits
    • KYC documents and audit data
    • CIF
    • GL
    • Value date
    • Limits
  6. BNK-S06

    Payments & Open Banking Integration

    Upcoming

    How money actually moves between banks, networks and apps.

    • UPI, NEFT, RTGS and IMPS
    • SWIFT and cross-border payments
    • Card networks and settlement
    • Open banking and partner APIs
    • Reconciliation of every rail
    • UPI
    • SWIFT
    • Cards
    • APIs
  7. BNK-S07

    Follow One Payment, End to End

    Upcoming

    One transaction traced from the app to the beneficiary's balance.

    • Initiation and authentication
    • Limit, balance and risk checks
    • Routing through the payment rail
    • Beneficiary credit and confirmation
    • Settlement, posting and reconciliation
    • Initiation
    • Routing
    • Settlement
    • Reconciliation
  8. BNK-S08

    Testing Banking Systems

    Upcoming

    The scenarios that matter when money is involved.

    • Interest and charge calculation
    • End-of-day batch and cut-off
    • Payment failure and reversal
    • Limits, holds and authorisation
    • Security, audit and regulatory reports
    • EOD
    • Reversal
    • Limits
    • Audit
  9. BNK-S09

    Real-World: The Batch That Double-Posted

    Upcoming

    An end-of-day run posts the same entries twice.

    • The first symptom: balances that do not tie
    • Tracing duplicate journal entries
    • Customer impact and reversal effort
    • Why the retry logic failed
    • The idempotency test that prevents it
    • Batch
    • Duplicate
    • Idempotency
    • Reversal
  10. BNK-S10

    Banking Certification Assessment

    Upcoming

    The whole banking track in one place — a short recap video, then a proctored online assessment that applies all nine framework layers to a real-world scenario.

    • Nine-layer recap of the domain
    • The five things most people get wrong
    • 30 questions · 45 minutes · 70% to pass
    • Webcam-proctored, one question at a time
    • Certificate with a verifiable ID
    • Assessment
    • Certification
    • Proctored
    • Nine layers

Banking terms you will hear on every project

The vocabulary that separates someone who can follow a banking requirements discussion from someone who cannot.

  • KYC
  • CASA
  • UPI
  • NEFT/RTGS
  • AML
  • CBS

Certified Banking Domain Practitioner — BDC-BNK

Finish the ten sessions, pass the online proctored assessment, and submit a scenario analysis to earn this domain's certificate. Each domain certifies separately.

Step 01

Learn

Watch every session in the Banking track and work through the handbook, framework workbook and test scenario checklist.

Step 02

Assess

Sit the online domain assessment — proctored with webcam on, no copying, no switching tabs and no looking answers up.

Step 03

Certify

Submit a real-world scenario analysis and receive your BDC-BNK certificate.

Enrolment

₹3,999₹5,999

Including GST · $59 outside India · launch price

One payment unlocks the whole Banking track: all 10 sessions in English and Telugu, every handbook, workbook and deck, the proctored assessment and the BDC-BNK certificate. Session 01 stays free for everyone. Taking more than one domain? Two are ₹9,999 and all seven tracks are ₹19,999 for a year.

Common questions

What is banking domain knowledge, and why do QA and BA roles need it?

Deposits, loans and payments — the systems that move money safely every second. Earn interest margin and fees. KPIs: net interest margin, CASA ratio, NPA %, cost-to-income. Without that picture, testers write cases against screens instead of against the business, requirements get read literally, and defects that matter most are the ones nobody thought to look for. This track gives you the business first and the systems second.

What does the Banking track cover?

Ten sessions following the nine-layer BDC framework: 01 How a Bank Makes Money; 02 The Banking Business Model; 03 Onboard, Transact, Lend, Monitor; 04 Banking Systems Landscape; 05 Banking Data; 06 Payments & Open Banking Integration; 07 Follow One Payment, End to End; 08 Testing Banking Systems; 09 Real-World: The Batch That Double-Posted; closing with the Banking Certification Assessment.

Is the Banking training free?

Session 01, the "at a glance" overview, is free for everyone in both English and Telugu. The remaining sessions, materials, assessment and certificate unlock when you enrol for this domain's certification, which costs ₹3,999 including GST, or $59 outside India — a launch price, down from ₹5,999. It is one payment for lifetime access to this domain — there is no subscription.

Are the sessions available in Telugu?

The website and the main sessions are in English. Separate Telugu explanation videos are published on the YouTube channel for released sessions, in conversational Telugu with technical terms left in English.

Who teaches these sessions?

Chandramouli Pasumarthy, Director of Quality Engineering and Delivery with 20+ years in the IT industry, leading QA and delivery for enterprise programmes across healthcare, retail, financial services, government and logistics.

Start the Banking track

Session 01 is free. Create an account to keep your progress, download the summary notes, and get each new session as it releases.

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