Software that works the way you work.

// OEE for one line and one shift. Sample data, for illustration.
type Shift = {
  plannedMin: number;    // planned production time
  downtimeMin: number;   // changeovers, waiting, breakdowns
  idealCycleMin: number; // ideal time per part
  totalParts: number;
  goodParts: number;
};

export function oee(s: Shift) {
  const runMin = s.plannedMin - s.downtimeMin;
  const availability = runMin / s.plannedMin;
  const performance = (s.idealCycleMin * s.totalParts) / runMin;
  const quality = s.goodParts / s.totalParts;
  return { availability, performance, quality,
           oee: availability * performance * quality };
}

oee({ plannedMin: 480, downtimeMin: 47, idealCycleMin: 0.5,
      totalParts: 780, goodParts: 752 });
// availability 90.2 %, performance 90.1 %, quality 96.4 %, OEE 78.3 %

// Sketch of an invoice flow, simplified for illustration.
// `bol` stands for a client of the official bol.com Retailer API.
export async function invoiceDelivered(orders: Order[]) {
  for (const order of orders) {
    if (order.placedBefore(activation)) continue; // never touch the past
    if (!order.delivered) continue;

    const pdf = await createInvoice(order, {
      language: order.customerLanguage,   // NL, EN or FR
      number: await nextInvoiceNumber(),  // continuous numbering
    });
    await email(order.customer, pdf);
    await track(order, "issued", "emailed");
  }
}

export async function onInvoiceRequest(req: InvoiceRequest) {
  const pdf = await originalPdf(req.order); // the same original PDF
  await bol.uploadInvoice(req, pdf);
  await track(req.order, "uploaded to bol");
}