Ericsson's Erlang switch software hit nine-nines by letting processes crash
AXD301 ran millions of calls on lightweight processes that die and restart, reaching 99.9999999% availability with 4x developer productivity.
Read the caseIngenious ideas that solved difficult problems. Explore what made them work.
The full archive, in the appAXD301 ran millions of calls on lightweight processes that die and restart, reaching 99.9999999% availability with 4x developer productivity.
Read the caseThe Testicular Cancer Society taught self-checks inside football highlights, earning 42 million impressions on a £7,000 media budget.
Read the caseCainiao built an online optimizer that decides which international parcels to consolidate and how to ship them, cutting delivery time at least 50%.
Read the caseA telco-bank joint venture franchised 20,000 shops as branches, reaching Pakistan's unbanked — 130 million transactions in four years.
Read the caseA Malaysian telco hid a miniature ball under a table-top pitch that mirrors the real match ball, so blind fans follow the game by touch.
Read the caseHaier's RenDanHeYi model turns employees into ecosystem entrepreneurs who must win users; by 2024 its incubator had produced 7 unicorns and 5,200+ ventures.
Read the caseNPCI added voice to UPI: say 'Hello app' to pay or check a balance, and an on-call IVR works without internet — opening UPI to feature phones.
Read the caseEFF had volunteers in a dozen countries test color laser printers under blue light, then published which models secretly print identifying dots.
Read the caseOn Chile's Cyber Monday, LATAM pitched flights abroad to buy imported goods cheaper than at home, selling US$30m in tickets instead of competing on discounts.
Read the caseFired in 1978, Bernie Marcus and Arthur Blank opened giant discount stores where trade-trained staff taught customers to do it themselves.
Read the caseCornell's registrar swapped a fixed lecture-time-to-exam table for a mixed-integer program, ending the 30-meeting-times vs 22-exam-slots conflict mess.
Read the caseMalaysia's festive ads celebrate perfect families, so Julie's told a single mother's Raya story as comedy — and won the Kancil Awards' top prize.
Read the caseA stall cows enter voluntarily; a camera-guided arm attaches the cups, so Lely's Astronaut milks around the clock without a fixed parlor shift.
Read the caseWashington's cap-and-invest auction sold all 6.19M allowances at $48.50 — double the $22.20 floor — raising $299.98M on day one.
Read the caseColombia's leading salt brand printed every club on limited packs and shipped them to the fans of whoever was losing, so a pinch of salt could reverse a streak.
Read the caseJio priced its 4G feature phone at an effective ₹0 via a refundable ₹1,500 deposit, turning feature-phone users into data customers — 100 million units sold.
Read the caseChristian Häne at UC Berkeley rebuilt 3D objects from small 2D images by starting coarse, discarding empty regions, and refining what remains.
Read the caseFarmers Fresh Zone linked Kerala farmers to city orders, using demand planning and traceability to deliver produce within 16 hours.
Read the caseAn Indian garment factory's line managers beat its slow central IT system by trading workers on reciprocal handshake deals.
Read the caseIntel's EFI (1998) became the UEFI Forum's open spec; UEFI existed for years, but Windows 8's logo requirement made it the firmware every consumer PC shipped.
Read the case