mql

Technical revision: 1 October 2026 · Educational materialOn this pageWrite an executable specificationSeparate five responsibilitiesUse MQL5 indicator handles correctlyTreat broker specifications as inputsDesign validation before optimizationChoose the next concrete taskA trading system is a set of rules, data assumptions and execution behavior. A checklist helps make those parts observable. No combination of features makes a system “perfect” or guarantees profitability. Write an executable specification Describe the symbol universe, timeframe, signal calculation, information available at decision time, entry policy, exit policy and account constraints. “Buy when momentum is strong” is not precise enough. State the exact inputs, comparisons and bar shifts.…