On large teams, it can be very difficult to see who is succeeding and who is struggling, or how the team as a whole is doing. Setting a standard around checking in code every day is a simple yet powerful target, acting as a Getting Things Done-esque tactic for larger engineering teams, to help ensure the ball moves forward every day.
Who can use this?
Flow proposes the idea of Coding Days as any day where an engineer contributed code to the project. There are many different forms of engineering work: writing code, reviewing others' work, discussing specs and architecture. Arguably the most important of these is contributing code, and it's important for teams to make sure that time dedicated to things other than this stays at a reasonable level.
This is where keeping an eye on Coding Days is valuable. Do you know how many engineering days your team loses each week to meetings, planning, or other non-engineering tasks? If your team is like most, you're losing at least one day per week.
How do I use Coding days?
Jill's team has been asked to bring a third-party service in-house for financial reasons. The team has historically been a coding powerhouse, and is generally thought to be one of the most productive engineering teams in the company.
Lately, however, something seems off: the engineers are grouchy and throughput seems a bit lower than normal. Looking at the team’s Coding Days trend, Jill can see that this number has been slowly trending down over the last 12 weeks. The need for engineers to serve as de-facto product owners is causing a real, quantifiable drop off in their ability to check in code.
Knowing this, Jill can jump in and run interference for the engineers who are affected the most (e.g. those whose Coding Days have fallen off hardest), and she is able to course-correct by bringing the team's focus back to what they do best: writing great software.
What is the industry standard?
The global average of days on deck with code is about 3.2 days per week.
Subtleties of what's right for each team can vary a bit. Developers who are working on ops stuff or non-code work might only have 1 or 2 Coding Days.
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