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At a software companyLesson 2 of 2

Part 1 of 3, 0 done

14 min

How a software company ships a feature

A new feature passes through half a dozen teams before a customer sees it, and each one hands it to the next. Follow one, a reminder text for salon clients, from the first request to the day you find out if it worked.

Ticket 01 · The guess

What breaks things?

When a big website or app stops working (an outage), what usually caused it? Google's reliability engineers looked at their own. What share of Google's outages came from changes to a live system, like shipping new code?

30%
0%100%
Words to know

Spot something wrong?

Tell us what looks off. No name or email needed.

What kind of problem?

0 / 1000

We'll also send this page, the lesson, ticket 1, so we can find it. Nothing else. Privacy

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Sources and every number (1)

Sources

  • Site Reliability Engineering: How Google Runs Production Systems, chapter 1, Introduction (Benjamin Treynor Sloss; edited by Betsy Beyer; O'Reilly Media) · Google, 2016

Every number

  • 70%sre.google ·2016 · Google's site reliability engineers found that roughly this share of outages are due to changes in a live system, in Google's own systems (Site Reliability Engineering, 2016).
  1. Lessons›
  2. Inside a business›
  3. At a software company
  • ·Before this: Who works at a software company
Skip to the lesson

At a software companyLesson 2 of 2

Part 1 of 3, 0 done

14 min

How a software company ships a feature

A new feature passes through half a dozen teams before a customer sees it, and each one hands it to the next. Follow one, a reminder text for salon clients, from the first request to the day you find out if it worked.

Ticket 01 · The guess

What breaks things?

When a big website or app stops working (an outage), what usually caused it? Google's reliability engineers looked at their own. What share of Google's outages came from changes to a live system, like shipping new code?

30%
0%100%
Words to know

Spot something wrong?

Tell us what looks off. No name or email needed.

What kind of problem?

0 / 1000

We'll also send this page, the lesson, ticket 1, so we can find it. Nothing else. Privacy

·
Sources and every number (1)

Sources

  • Site Reliability Engineering: How Google Runs Production Systems, chapter 1, Introduction (Benjamin Treynor Sloss; edited by Betsy Beyer; O'Reilly Media) · Google, 2016

Every number

  • 70%sre.google ·2016 · Google's site reliability engineers found that roughly this share of outages are due to changes in a live system, in Google's own systems (Site Reliability Engineering, 2016).
  1. Lessons›
  2. Inside a business›
  3. At a software company
  • ·Before this: Who works at a software company