# Commissioning Management System ## Software Requirements Specification (SRS) **Module Type:** Standalone Business Module / Rule Engine **Primary Purpose:** Employee, Project Member, Team এবং Contract-এর বিপরীতে company-defined commission calculation, eligibility, allocation, vesting, redistribution এবং settlement পরিচালনা করা। **Implementation plan:** [COMMISSIONING_IMPLEMENTATION_PLAN.md](../project-management/commission/COMMISSIONING_IMPLEMENTATION_PLAN.md) — stub-first build, Project connect later (`PMS-COMM-EPIC`). --- # 1. Purpose Commissioning Management System-এর উদ্দেশ্য হলো কোম্পানির বিভিন্ন Project/Service/Contract থেকে employee বা project member-এর জন্য প্রযোজ্য commission একটি **dynamic এবং configurable rule engine** ব্যবহার করে নির্ধারণ ও manage করা। System কোনো নির্দিষ্ট commission percentage বা fixed business rule-এর উপর নির্ভর করবে না। Company administrator বিভিন্ন সময় প্রয়োজন অনুযায়ী: - Commission percentage - Fixed amount - Commission duration - Eligibility - Employee probation restriction - BD/PD allocation - Commission redistribution - Salary/Fund allocation - Vesting - Employee exit/termination settlement ইত্যাদি configure করতে পারবে। --- # 2. Business Objective System-এর মূল objective: 1. Commission calculation automate করা 2. Manual calculation কমানো 3. Company policy configurable করা 4. Contract-based earning track করা 5. Employee-specific commission track করা 6. Historical commission preserve করা 7. Commission এবং Fund-এর complete ledger রাখা 8. Employee exit-এর সময় settlement automate করা 9. Future business rules পরিবর্তন হলেও core software code পরিবর্তনের প্রয়োজন কমানো --- # 3. Scope ## In Scope ### Commission Management - Commission Policy - Commission Rule - Commission Eligibility - Commission Calculation - Commission Duration - Commission Allocation - Commission Redistribution - Commission Approval - Commission Posting - Commission Ledger ### Employee Fund - Commission Fund - Fund Allocation - Vesting - Vested Amount - Unvested Amount - Fund Withdrawal/Settlement ### Employee Lifecycle - Probation restriction - Confirmation-based eligibility - Employment tenure - Employee transfer - Employee termination - Final settlement ### Integration Commissioning module external module থেকে business data গ্রহণ করবে। যেমন: - Project Management - Contract Management - Team Management - Employee/HR - Payroll - Finance --- # 4. Out of Scope বর্তমান version-এ Commissioning Module নিজে: - Salary calculation করবে না - Full Payroll process করবে না - Statutory PF calculation করবে না - Invoice generate করবে না - Client payment collection করবে না - Accounting-এর complete General Ledger replace করবে না তবে প্রয়োজন অনুযায়ী Payroll/Finance system-এর সঙ্গে commission data share করবে। --- # 5. Core Business Concept Commission calculation-এর high-level flow: ```text Contract ↓ Contract Value ↓ Team Share ↓ BD / PD Allocation ↓ Member Assignment ↓ Commission Rules ↓ Eligibility Check ↓ Commission Calculation ↓ Duration Check ↓ Redistribution ↓ Salary / Fund Allocation ↓ Vesting ↓ Ledger ↓ Settlement ``` --- # 6. Integration with Project Management Project Management module commission-এর business source হিসেবে কাজ করবে। Project Management থেকে Commissioning module-এ আসবে: ```text Project Service Contract Contract Value Contract Duration Team Team Division Assigned Members Contract Roles Member Assignment ``` Commissioning module এই information-এর উপর rules apply করবে। --- # 7. Important Principle Commissioning Module কোনো employee-এর permanent team membership-এর উপর সরাসরি commission নির্ধারণ করবে না। Commission-এর ক্ষেত্রে Contract Assignment এবং Contract Role গুরুত্বপূর্ণ। উদাহরণ: ```text Employee: Rahim Permanent Team: SEO Team Contract: Digital Marketing Contract Contract Role: Sales Person / Act As ``` এই contract-এর commission rule অনুযায়ী Rahim commission পেতে পারে। --- # 8. Commission Pool Model একটি Contract-এর জন্য company একটি Team Share নির্ধারণ করতে পারে। Example: ```text Contract Value = $100 Team Share = 30% ``` তাহলে: ```text Team Pool = $30 ``` এই Team Pool আবার BD এবং PD-এর মধ্যে ভাগ হতে পারে। Example: ```text BD = 40% PD = 60% ``` Result: ```text BD Pool = $12 PD Pool = $18 ``` **উপরের percentage শুধুমাত্র example।** Actual percentage system-এর configurable rule থেকে আসবে। --- # 9. Dynamic Rule Engine System-এর সবচেয়ে গুরুত্বপূর্ণ component হবে: ## Commission Rule Engine Rules hardcode করা যাবে না। Company বিভিন্ন ধরনের rule configure করতে পারবে। --- # 10. Rule Dimensions একটি commission rule-এর ক্ষেত্রে নিচের dimensions configurable হতে পারে: | Dimension | Example | |---|---| | Rule Scope | Company / Service / Team / Contract / Employee | | Commission Type | Percentage / Fixed | | Calculation Base | Contract / Team Pool / BD Pool / PD Pool | | Role | Sales / Closer / PM / Manager | | Division | BD / PD | | Start Condition | Contract Start / Confirmation | | Duration | 3 Months / 6 Months / Contract Duration | | Frequency | One Time / Monthly | | Eligibility | Confirmed Employee | | Allocation | Salary / Fund | | Redistribution | Company / PD / Other | | Vesting | 30/60/100 | | Termination | Vested / Custom | | Effective Date | Configurable | | Priority | Configurable | --- # 11. Rule Scope একটি rule বিভিন্ন level-এ apply হতে পারে। ### Company Level সব employee/contract-এর default rule। ### Service Level শুধু SEO বা Digital Marketing-এর জন্য। ### Team Level নির্দিষ্ট team-এর জন্য। ### Contract Level একটি specific contract-এর জন্য। ### Employee Level একজন নির্দিষ্ট employee-এর জন্য। --- # 12. Rule Priority একাধিক rule applicable হলে priority প্রয়োজন। Recommended priority: ```text Employee ↓ Contract ↓ Team ↓ Service ↓ Company Default ``` অর্থাৎ specific rule generic rule-কে override করতে পারবে। --- # 13. Rule Effective Date প্রতিটি rule-এর: - Effective From - Effective To - Status থাকবে। Example: ```text Rule A Effective: 01 Jan 2026 → 30 Jun 2026 Rule B Effective: 01 Jul 2026 → onwards ``` পুরনো commission নতুন rule দিয়ে recalculate হবে না। --- # 14. Rule Snapshot Commission generate হওয়ার সময় applicable rule-এর snapshot সংরক্ষণ করতে হবে। Example: ```text Commission Generated: March 2026 Applied Rule: BD Commission 10% Calculation Base: BD Pool Duration: 3 Months ``` পরবর্তীতে rule পরিবর্তন হলেও March-এর historical commission পরিবর্তন হবে না। --- # 15. Commission Eligibility Matrix | Condition | Possible Rule | |---|---| | Employee Status | Active only | | Probation | Not eligible | | Confirmation | Eligible after confirmation | | Employment Duration | Minimum 1 year | | Contract Status | Active | | Contract Assignment | Required | | Role | Sales Person | | Team Division | BD | | Service | Digital Marketing | | Custom Condition | Company defined | সব condition configurable হওয়া উচিত। --- # 16. Example — Probation Rule Company rule: > Probation period-এ employee commission পাবে না। Employee: ```text Joining Date: 01 Jan 2026 Probation: 3 Months ``` Contract শুরু: ```text 01 Jan 2026 ``` Result: ```text Jan → Not Eligible Feb → Not Eligible Mar → Not Eligible Apr → Eligible ``` Commission rule applicable থাকলেও Eligibility Engine প্রথমে employee-এর eligibility check করবে। --- # 17. Commission Duration Matrix | Duration Type | Example | |---|---| | One Time | Once | | Fixed Months | 3 Months | | Fixed Months | 6 Months | | Fixed Months | 12 Months | | Contract Duration | Contract active থাকা পর্যন্ত | | Lifetime | No expiry | | Custom Date | Start-End | | Event Based | Until specific event | --- # 18. BD Commission Example ধরা যাক: ```text Contract Value = $100 Team Share = $30 BD Allocation = 40% BD Pool = $12 ``` Rule: ```text BD Commission Duration = 3 Months ``` তাহলে: ```text Month 1 → Eligible Month 2 → Eligible Month 3 → Eligible Month 4 → BD Commission STOP ``` Contract কিন্তু এখনও active থাকতে পারে। --- # 19. PD Commission Example একই contract: ```text Contract Duration = 12 Months ``` Rule: ```text PD Commission = Contract Active Duration ``` তাহলে: ```text Month 1 → Eligible ... Month 12 → Eligible Contract Ends ↓ PD Commission Ends ``` --- # 20. BD Pool Release BD commission শেষ হওয়ার পর BD-এর unused allocation release হতে পারে। Example: ```text Team Pool = $30 BD = $12 PD = $18 ``` BD-এর commission duration শেষ হয়ে গেল। Remaining/released BD pool: ```text $12 ``` Company policy অনুযায়ী এই amount: ### Option 1 ```text $12 → Company ``` ### Option 2 ```text $12 → PD Pool ``` ### Option 3 ```text $12 ├── $8 → PD └── $4 → Company ``` এই policy dynamic হবে। --- # 21. Redistribution Matrix | Released Pool | Destination | |---|---| | BD → Company | Company retains | | BD → PD | Full PD redistribution | | BD → Company + PD | Percentage based | | BD → Other Pool | Configurable | | No Redistribution | Pool remains unused | --- # 22. Dynamic PD Recalculation যদি released BD pool PD-কে দেওয়া হয়: ```text Original PD Pool = $18 Released BD = $12 Effective PD Pool = $30 ``` অথবা company rule অনুযায়ী: ```text Released BD = $12 PD gets 50% Company gets 50% PD Additional = $6 Company = $6 ``` Engine এই calculation automatically করবে। --- # 23. Commission Payment Method Commission employee-কে দুইভাবে দেওয়া যেতে পারে: ```text Commission │ ├── Salary │ └── Commission Fund ``` --- # 24. Salary Allocation Example: ```text Commission = $1,000 Salary Allocation = 100% Fund Allocation = 0% ``` Employee salary cycle-এ: ```text $1,000 ``` commission হিসেবে যাবে। --- # 25. Fund Allocation Example: ```text Commission = $1,000 Salary = 0% Fund = 100% ``` Employee Commission Fund: ```text +$1,000 ``` --- # 26. Partial Allocation Company চাইলে: ```text Commission = $1,000 Salary = 60% Fund = 40% ``` Result: ```text Salary = $600 Fund = $400 ``` Validation: ```text Salary Allocation % + Fund Allocation % = 100% ``` --- # 27. Commission Fund Commission Fund normal statutory PF-এর equivalent হিসেবে ধরে নেওয়া হবে না। এটি একটি **company-defined deferred commission/fund balance**। Fund-এর মধ্যে থাকবে: - Opening Balance - Commission Credit - Adjustment - Vesting - Withdrawal - Settlement - Forfeiture - Closing Balance --- # 28. Vesting Engine Fund-এর টাকা employee সঙ্গে সঙ্গে পাবে—এমনটা বাধ্যতামূলক নয়। Company vesting policy configure করতে পারবে। ### Example ```text 1 Year → 30% 2 Years → 60% 3 Years → 100% ``` যদি employee-এর fund balance: ```text $10,000 ``` তাহলে: ### After 1 Year ```text Vested = $3,000 Unvested = $7,000 ``` ### After 2 Years ```text Vested = $6,000 Unvested = $4,000 ``` ### After 3 Years ```text Vested = $10,000 Unvested = $0 ``` --- # 29. Alternative Vesting Rule Company চাইলে: ```text Minimum Service = 3 Years Before 3 Years: Vested = 0% After 3 Years: Vested = 100% ``` অথবা: ```text Minimum Service = 5 Years ``` এগুলো configuration-এর মাধ্যমে সম্ভব হবে। --- # 30. Vesting Rule Matrix | Vesting Type | Example | |---|---| | Immediate | 100% immediately | | Time Based | 30/60/100 | | Minimum Service | 100% after 3 years | | Contract Based | Contract duration | | Custom | Company defined | | No Vesting | Always payable | --- # 31. Employee Termination Employee company ছাড়লে Commissioning Engine final settlement calculate করবে। Input: ```text Accrued Commission Fund Balance Vested Amount Unvested Amount Employment Duration Termination Type Termination Date Applicable Rule ``` --- # 32. Termination Example Employee: ```text Fund Balance = $10,000 Vested = $6,000 Unvested = $4,000 ``` Company rule: > Employee termination হলে vested amount-এর 100% payable। Result: ```text Employee Payable = $6,000 Company Retained = $4,000 ``` --- # 33. Termination Rule Matrix | Termination Type | Possible Policy | |---|---| | Resignation | Vested amount | | Company Termination | Custom | | Layoff | Full vested | | Contract End | Full/partial | | Misconduct | Forfeit | | Retirement | Full vested | | Death | Nominee/estate rule | | Custom | Company defined | উপরের policy-গুলো example মাত্র; final company rules configurable হবে। --- # 34. Commission Calculation Formula Generic formula: ```text Commission Base × Commission Rate = Gross Commission ``` Example: ```text Commission Base = $12 Rate = 10% Commission = $1.20 ``` কিন্তু Calculation Base dynamic হবে। Possible base: ```text Contract Value Team Pool BD Pool PD Pool Collected Amount Profit Fixed Amount Custom Base ``` --- # 35. Calculation Base Matrix | Base | Example | |---|---| | Contract Value | 10% of $100 | | Team Pool | 10% of $30 | | BD Pool | 10% of BD pool | | PD Pool | 10% of PD pool | | Fixed Amount | $500 | | Monthly Value | % of monthly contract | | Collected Revenue | % of received amount | | Custom | Company-defined | --- # 36. Frequency Commission frequency: ```text One Time Monthly Quarterly Yearly Contract Cycle Milestone Custom ``` --- # 37. Commission Lifecycle ```text Draft Rule ↓ Rule Activated ↓ Contract/Employee Eligible ↓ Commission Period Opens ↓ Eligibility Evaluation ↓ Calculation ↓ Commission Generated ↓ Allocation ↓ Approval ↓ Posting ↓ Salary / Fund ↓ Ledger ``` --- # 38. Commission Run Recurring commission-এর জন্য system-এ **Commission Run** থাকবে। Example: ```text Commission Run: September 2026 ``` Run-এর মধ্যে থাকবে: ```text Contracts Processed Employees Processed Gross Commission Salary Allocation Fund Allocation Company Retained Redistributed Amount ``` --- # 39. Commission Run Status ```text Draft Calculated Under Review Approved Posted Cancelled ``` Posted হওয়ার পর calculation data immutable হওয়া উচিত। --- # 40. Commission Ledger প্রত্যেক financial movement ledger-এ record হবে। Example: | Date | Type | Credit | Debit | Balance | |---|---|---:|---:|---:| | Jan | Commission | $500 | - | $500 | | Feb | Commission | $500 | - | $1,000 | | Feb | Salary Allocation | - | $300 | $700 | | Feb | Fund Allocation | $200 | - | $900 | Ledger-এর মাধ্যমে complete audit trail পাওয়া যাবে। --- # 41. Transaction Principle Commission calculation এবং balance update একই transaction boundary-এর মধ্যে হবে। যেমন: ```text BEGIN TRANSACTION Generate Commission Create Commission Ledger Allocate Salary Allocate Fund Update Balance COMMIT ``` কোনো step fail করলে পুরো operation rollback হবে। --- # 42. Idempotency একই period-এর commission দুইবার generate করা যাবে না। Example: ```text Employee: Rahim Contract: DM-001 Period: September 2026 ``` একবার commission posted হয়ে গেলে একই employee + contract + period-এর জন্য duplicate commission run prevent করতে হবে। --- # 43. Rule Change Handling ধরা যাক: January: ```text BD = 40% PD = 60% ``` July: ```text BD = 30% PD = 70% ``` January-এর historical commission: **40/60 rule অনুযায়ী থাকবে।** July-এর commission: **30/70 rule অনুযায়ী হবে।** পুরনো calculation overwrite করা যাবে না। --- # 44. Example — Complete Scenario ধরা যাক: ```text Contract Value = $100 Team Share = 30% BD = 40% PD = 60% ``` Initial: ```text Team Pool = $30 BD Pool = $12 PD Pool = $18 ``` BD rule: ```text Duration = 3 Months ``` PD rule: ```text Duration = Contract Duration ``` Contract: ```text Duration = 12 Months ``` Result: ```text Month 1-3: BD → Active PD → Active Month 4-12: BD → Inactive PD → Active ``` Company chooses: ```text Released BD Pool → PD ``` তাহলে Month 4 থেকে: ```text PD Original Pool + Released BD Pool ``` অনুযায়ী PD calculation হবে। অন্যদিকে company চাইলে: ```text Released BD Pool → Company ``` তাহলে PD-এর calculation পরিবর্তন হবে না। --- # 45. Employee Eligibility Example Contract January-তে শুরু হয়েছে। Employee probation: ```text 3 Months ``` Rule: ```text Confirmed Employee Only ``` তাহলে: ```text Jan → No Commission Feb → No Commission Mar → No Commission Apr → Commission Eligible ``` তবে contract-এর commission period January থেকে শুরু হবে কিনা, নাকি employee eligible হওয়ার পর থেকে শুরু হবে—এটিও dynamic rule হিসেবে configurable হতে হবে। Possible policy: ### Policy A Commission period contract start থেকে count হবে। ### Policy B Commission period employee eligibility থেকে count হবে। --- # 46. Commission Duration vs Eligibility Duration দুটিকে আলাদা concept হিসেবে রাখতে হবে। উদাহরণ: ```text Commission Duration = 6 Months Employee Eligibility: Starts after probation ``` Contract January-তে শুরু হলেও employee April-এ eligible হতে পারে। System তখন বুঝবে: ```text Commission Window ≠ Employee Eligibility Window ``` এই distinction future calculation-এর জন্য খুব গুরুত্বপূর্ণ। --- # 47. Rule Matrix — Master | Rule Area | Configurable | |---|---| | Commission Rate | Yes | | Fixed Commission | Yes | | Calculation Base | Yes | | Team Share | Yes | | BD Share | Yes | | PD Share | Yes | | Commission Duration | Yes | | Commission Frequency | Yes | | Eligibility | Yes | | Probation Restriction | Yes | | Employee Tenure | Yes | | Start Condition | Yes | | End Condition | Yes | | Redistribution | Yes | | Salary Allocation | Yes | | Fund Allocation | Yes | | Vesting | Yes | | Termination | Yes | | Effective Date | Yes | | Rule Priority | Yes | | Contract-specific Override | Yes | | Employee-specific Override | Yes | --- # 48. Commission Rule Configuration — Conceptual একটি Rule-এ conceptually থাকতে পারে: ```text Rule ├── Name ├── Scope ├── Service ├── Team ├── Division ├── Role ├── Contract ├── Employee │ ├── Calculation │ ├── Type │ ├── Base │ ├── Rate │ └── Fixed Amount │ ├── Eligibility │ ├── Employee Status │ ├── Confirmation │ ├── Tenure │ └── Custom Conditions │ ├── Duration │ ├── Type │ ├── Value │ └── Start/End Condition │ ├── Allocation │ ├── Salary % │ └── Fund % │ ├── Redistribution │ ├── Trigger │ ├── Destination │ └── Percentage │ └── Vesting ├── Type └── Schedule ``` --- # 49. Non-Functional Requirements ## Auditability প্রতিটি commission calculation-এর জন্য জানতে হবে: - কোন contract - কোন employee - কোন role - কোন rule - কোন rule version - কোন calculation base - কোন period - কত amount - কত salary - কত fund - কত redistribution --- ## Traceability একটি employee-এর commission trace করা যাবে: ```text Employee ↓ Contract ↓ Team ↓ Role ↓ Rule ↓ Calculation ↓ Commission ↓ Allocation ↓ Ledger ``` --- # 50. Immutability Approved/Posted commission records সরাসরি edit করা যাবে না। Correction-এর জন্য: ```text Adjustment Reversal Correction Transaction ``` ব্যবহার করা উচিত। --- # 51. Permission Requirements সম্ভাব্য permission: ```text commission.view commission.rule.view commission.rule.create commission.rule.update commission.rule.activate commission.calculate commission.approve commission.post commission.adjust commission.settlement.view commission.settlement.approve commission.report.view ``` --- # 52. Reporting System থেকে: ### Contract-wise - Contract Value - Team Pool - BD Pool - PD Pool - Commission ### Employee-wise - Total Commission - Salary Commission - Fund Commission - Vested - Unvested - Paid - Pending ### Team-wise - Total Team Pool - BD Allocation - PD Allocation - Released Pool - Redistributed Pool ### Period-wise - Monthly Commission - Approved Commission - Posted Commission - Pending Commission --- # 53. Commission Engine — Recommended Internal Flow ```text Commission Request ↓ Load Context ↓ Resolve Rules ↓ Create Rule Snapshot ↓ Check Eligibility ↓ Determine Commission Period ↓ Determine Calculation Base ↓ Calculate Gross Commission ↓ Apply Duration ↓ Apply Redistribution ↓ Apply Allocation ↓ Generate Commission Transaction ↓ Create Ledger ↓ Approval ↓ Posting ``` --- # 54. Important Design Principle Commission Engine-কে **CRUD module** হিসেবে design করা উচিত নয়। এটা হবে: > **Rule-driven transaction processing engine** অর্থাৎ মূল কাজ হবে: ```text Input ↓ Rules ↓ Evaluation ↓ Calculation ↓ Decision ↓ Transaction ``` --- # 55. Future Extensibility বর্তমান rules না থাকলেও architecture future-এর জন্য প্রস্তুত থাকবে। পরবর্তীতে company চাইলে: - Sales commission - Closer commission - Upsell commission - Cross-sell commission - Renewal commission - Performance bonus - Referral commission - Profit sharing - Service-based incentive - Target-based commission - Milestone commission একই engine-এর মাধ্যমে implement করা যাবে। --- # 56. Final Business Model Commissioning System-এর final conceptual model: ```text ┌──────────────────────┐ │ PROJECT MANAGEMENT │ └──────────┬───────────┘ │ Contract / Assignment │ ▼ ┌──────────────────────┐ │ COMMISSIONING ENGINE │ └──────────┬───────────┘ │ ┌────────────────┼────────────────┐ ▼ ▼ ▼ Rule Engine Eligibility Engine Duration │ │ │ └────────────────┼────────────────┘ ▼ Calculation Engine │ ┌──────────┴──────────┐ ▼ ▼ Redistribution Allocation │ │ │ ┌──────┴──────┐ │ ▼ ▼ │ Salary Fund │ │ │ Vesting │ │ └──────────────┬─────────────┘ ▼ Ledger Engine │ ▼ Settlement Engine ``` --- # 57. Core Requirement Summary Commissioning Module-এর সবচেয়ে গুরুত্বপূর্ণ requirement হলো: > **Company যেন future-এ commission-এর business rule পরিবর্তন করতে পারে, কিন্তু প্রতিবার developer-কে core calculation logic পরিবর্তন করতে না হয়।** তাই system-এর architecture হবে: **Configuration → Rule Resolution → Eligibility → Calculation → Allocation → Redistribution → Vesting → Ledger → Settlement** এবং কোনো commission transaction generate হওয়ার পর তার **applied rule snapshot + calculation result + ledger transaction** historical audit-এর জন্য সংরক্ষিত থাকবে। --- # 58. SRS Acceptance Criteria Module সফলভাবে complete হয়েছে বলা হবে যদি: 1. Company dynamic commission rule create করতে পারে। 2. Rule company/service/team/contract/employee level-এ apply করা যায়। 3. BD এবং PD আলাদা allocation করা যায়। 4. Commission duration configure করা যায়। 5. Probation/confirmation eligibility configure করা যায়। 6. Contract active থাকা পর্যন্ত recurring commission চালানো যায়। 7. BD commission বন্ধ হয়ে গেলে released pool configurable destination-এ দেওয়া যায়। 8. Salary এবং Fund-এর মধ্যে commission ভাগ করা যায়। 9. Fund-এর vesting schedule configure করা যায়। 10. Employee termination-এর সময় configurable settlement করা যায়। 11. Historical commission old rule অনুযায়ী unchanged থাকে। 12. Commission duplicate generate করা যায় না। 13. প্রতিটি calculation audit করা যায়। 14. Approved/posted transaction সরাসরি পরিবর্তন করা যায় না। 15. নতুন commission policy যুক্ত করার জন্য core engine rewrite করা না লাগে। --- # 59. Final Architecture Statement এই module-এর মূল philosophy হবে: > **"Don't hardcode the commission policy; build an engine that executes the policy."** Project Management বলবে: **“এই Contract-এ এই Team, এই Member এবং এই Role কাজ করছে।”** Commissioning System বলবে: **“Company-এর বর্তমান rules অনুযায়ী এই Member এই Contract থেকে এই amount-এর commission-এর জন্য eligible; এর এই অংশ salary-তে, এই অংশ fund-এ যাবে; এই সময় পর্যন্ত commission চলবে; এবং এই rule অনুযায়ী future-এ vest/settle হবে।”** এই separation-টাই পুরো system-এর সবচেয়ে গুরুত্বপূর্ণ architectural boundary।