When I was a technical director at Symantec, I had to formally certify at the end of each quarter that I had not entered into any “side agreements” with customers.
A side agreement is any arrangement that takes place out-of-band, off-the-books, or using private channels not normally examined by accountants. In business, they are usually a bad thing; they can be used to build Enron- or Madoff-style house-of-cards revenue pipelines that are gleaming and glittery at first glance, but that are ripe for collapse because they’re full of hidden caveats and preconditions.
The former Enron towner, now owned by Chevron. Image credit: DaveWilsonPhotography (Flickr)
The problem of side agreements might not impinge on the consciousness of software engineers much, except when they grumble that sales or execs or product management is “selling the roadmap” instead of shipping features. But would you believe me if I said that engineers perpetrate their own Enron-esque side agreements all the time?
I’ve been focusing on esoteric features of language design for a while. I thought it might be nice to take a detour and explore something eminently practical and easy to explain, for a change.
Let’s talk data and tables.
I don’t mean databases–relational or otherwise; I’m talking about tables of data in source code itself. Sooner or later, every coder uses them. We build jump tables, tables of unicode character attributes, tables of time zone properties, tables of html entities, tables of multipliers to use in hash functions, tables that map zip codes to states, tables of dispatch targets, tables that tell us the internet domain-name suffix for a particular country name…
Depending on the language you’re using and the nature of your data, you might code such tables using arrays, structs, enums, dictionaries, hash maps, and so forth.
I think this is a mediocre solution, at best. Shouldn’t programmers work on funner stuff, like “traveling salesman” problems? :-)