tirsdag den 9. august 2011
Livets mening m.m.
fredag den 4. december 2009
Dan North at JAOO 2009 - Adventures of an Agile Architect
(writers note: This post was originally intended for today.jaoo.dk but I thought I'd start by posting it here as a draft since nobody reads this blog anyway :-) Thanks to Rolf Njor Jensen for co-authoring this post!)
Have a shaman - be a shaman
Every team needs a shaman. A shaman is person who tells stories. So, when someone in the team asks "Why the hell is this code like this?". The Shaman tells the story of this partibular piece of code, its past and how it fits into the rest of the stuff.
Strip away everything you can
When you start to strip away stuff that has no real value in your codebase. You of course will get a simpler system. But another advantages is that other unnecessary stuff pops up and becomes visible.
Use transitional architectures
Developing software is performing structural changes on existing bodies of code, occasionally adding new pieces of code and chipping away old, unnecessary code. If you want a nice loosely coupled architecture with good performance but your current architecture is a big pile of crap. Then it might sometimes be necessary to take one step at a time and for instance start by removing all God classes. An architecture with no God classes then becomes a transitional architecture (or you could say a temporary solution). This architecture does not fully fulfil the goal but is one step towards the wanted solution. It is very important that everyone are aware of the fact that the transitional architecture is not the final solution.
Dan gave another example of a transitional architecture namely to get from the current build system to Ivy. Maven was used as a transitional solution. Maven is this obsessive compulsive friend. When you bring Maven on a date it brings all its friends from all over the internet. The obsessive compulsive disorder has one advantage: Since Maven is very rigid about the placement of different parts of the source less duplicated code is created (since developers discover that the needed code has already been developed before introducing a duplicate solution). After Maven had done its tricks the team was ready to move to Ivy. As Dan put it “When bringing Ivy on a date, Ivy asks if he can bring one of his friend who will clean up the house during the dinner”.
Avoid Standup Stasis
Dan gave a nice demo of how daily standups should not be performed. It is hard to replicate in words so I will try with a strip instead:
The team that Dan started working on as an consultant had stopped doing daily scrums. Dan asked how they used to do it and the team did as the above strip tries to explain – i.e. everybody on the team just reported. No one listened and no one commented on others statuses – Scrum Stasis. The team refused to start doing scrums again so Dan did a clever trick. The next day he said “Well I've just had this fantastic idea: why don't we meet each morning and have a chat about the rest of the day answering the question - how we can have the best today?”. The team thought this was a brilliant idea and this way Dan North reintroduced daily scrums (without using the term). Finally, here is a list of points and citations that did fit into this post:
There is always a reason
Ensure deterministic deployment
You shouldn't "buy" architecture
Nice architects listen, and are not-very-self-important.
“Take a pile of crap A, take another (larger) pile of crap B, and make them into a nice lightweight group of services.”
torsdag den 5. november 2009
Hvidt i hvidt
Tag os sammen!
Det må være slut! Du danske mand, tag dig sammen! Sig nej til din kone! Bestem selv over hjemmet så det ikke ender med hvidt i hvidt.
tirsdag den 29. september 2009
My JAOO 2009 Master Plan
Location: C103 Music Hall
Location: Store Sal
Location: Lille Sal
Location: C103 Music Hall
Location: Store Sal
Location: Store Sal
Location: Filuren
Location: Filuren
fredag den 21. august 2009
Sprint Ready tilføjet af hvem?
søndag den 9. august 2009
Skanderborg 2009 - av mit hår
Skanderborg 2009 - av mit hår
Konen og jeg var på Skanderborg festival i går og det var rigtig godt. Masser af drikkelse, masser af god musik, masser af smukke og glade mennesker og frem for alt ingen børn at skulle være ansvarlige overfor :-)
Drikkelse
Var med på den guidede tour i år - det kan kraftigt frarådes. Vi fik drinks hele tiden så det var svært at ramme den perfekte brandert (den hvor man kun kan se hegnet og har det sjovt...) - med indtagelse af masser af vand og lækkert mad efter rundturen fik jeg noglunde kontrol over min.
Musik
Musikken ville jeg godt have hørt lidt mere af. Jeg skulle have brugt lidt mere tid på at studere programmet - så havde jeg nok haft nemmere ved at ramme det rigtige. Jeg fik hørt Veto og der blev jeg utrolig glad for mit ørepropper. Ikke fordi musikken var dårlig, men fordi deres tunge basgange fik folks bukser til at flagre.
Sidste år på Skanderborg nød jeg rock trilogien Saybia, Carpark North og Kashmir og selvom jeg er stor Kashmir fan var det faktisk Carpark North, der var den bedste koncertoplevelse sidste år. Det var det også i år! Carpark North var for vilde - veloplagte, velspillende og med 10 års fødselsdag gav de den hele armen. Zididada var også en positiv oplevelse dog kun momentvis.
Jeg føler mig gammel.
Jeg føler mig gammel når jeg tager til Skanderborg festival og snakker med folk på under 25 og betragter dem teenagere. Jeg føler mig gammel når jeg har ondt i håret 3 dage efter at have drukket mig kun halvvejs i hegnet.