Fancy Pancy Tech Talk

You can find a lot of business terms here

Churn Rate

Churn rate, when applied to a customer base, refers to the proportion of contractual customers or subscribers who leave a supplier during a given time period. It is a possible indicator of customer dissatisfaction, cheaper and/or better offers from the competition, more successful sales and/or marketing by the competition, or reasons having to do with the customer life cycle.

“survival rate” is used to mean 1 minus the churn rate

Long Tail

In business, the term long tail is applied to rank-size distributions or rank-frequency distributions (primarily of popularity), which often form power laws and are thus long-tailed distributions in the statistical sense. This is used to describe the retailing strategy of selling a large number of unique items with relatively small quantities sold of each (the “long tail”)—usually in addition to selling fewer popular items in large quantities (the “head”).

The 4 P’s

product, price, place and promotion

Domain Driven Design

DDD is one of those terms that freshly educated architects like to use to distance themselves from “older” (and thereby inferior) techniques.

So, what is DDD really. Well, it all boils down to “talk to your customer and learn what they do, so you can talk their talk”. You need to understand their business so you can create a system which aligns with it.

Not so difficult, ey? Then learn to drop some fancy keywords like “Bounded Context” and “Domain Event” and you are well on your way.


To Be Done

Marketing / Sales



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