failures, conjectures & closure

Failures, Conjectures & Closure

UpdatePDX & Tim Anglade present

Prologue

( Tim Anglade enters, stage left )

( A converted warehouse, somewhere near the banks of the Willamette. The year is two thousand and eleven.)

FailingAct I

( Bradford Stephens enters, stage right )

( Sarah Novotny enters, stage right )

( Alex Payne enters, stage right )

( Tim Anglade enters, stage right )

Making SenseAct II

data Hosting & AnalYTICSYour CLOUD OR MINE

Should I use <…> ?It sounds incredibly

appealing!

Let me tell you abouta trend-setting, industry-leading

technological revolutionI’m very passionate about…

Zamboni Model 560AC provides energy efficiencywithout compromise of performance.

The PLUS+1™ dash display enables operatorso monitor the resurfacing in progress and

make adjustments on demand. Zamboni’s newOne-Touch mode uses customizable settingsor auger speeds, electronic water valves and

blade control for improved ease of operationand a more consistent ice surface.

The 560AC is the electric solution with the power to meet the needs of today’s busy arenaurfaces. The AC motors/controls and load sensing hydraulic system increase efficiency

providing more resurfacings per charge.

The design of the 560AC integrates state-of-the-art technology with standard featuresncluding an automatic snow breaker, hydraulically actuated snow tank lid, and theZamboni Advanced Water System (AWS™) resulting in a simplified resurfacing processand a superior sheet of ice.

The 560AC is the new standard for emission-free reliability with unparalleled power.

Discover why Zamboni is the overwhelming choice for ice rink operators throughout the world.

Nothing else is even close

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This brochure is a PDF internet version posted on our website for reference only. The Zamboni Company assumes no responsibility for its content or use. For product and sales information, please contact the Zamboni Company at www.zamboni.com.

Streamlined conditioner design withinternal-drive horizontal augerprovides additional maneuverability.

Replaceable poly runners serve asprotective wear strips for the sides ofthe conditioner.

The Ultimate Machine

Electronic Controls

Battery and ChargerIndustry proven lead acid batteries.Microprocessor controlled chargers forlong battery life.

DrivetrainFour-wheel drive. Rugged axles offer anindustry leading load bearing capacity of6400 lbs (2903 kg) per axle.ABM 24hp AC traction motor.

HydraulicsElectronically controlled proportionalhydraulic valves and load sense hydraulicpump provide increased efficiency andpower on demand. Vertical andhorizontal auger motors maintainselected speeds under load. High capacityoil tank. ABM 11hp AC pump motor.

ConstructionStrong 2” x 5” all-welded structural steelchassis. Premium primer and paint, stainlesssteel water distribution pipe and polyethylenewater tanks. Vertical auger enclosure reducesoperator area sound levels.

Zamboni USAFrank J. Zamboni & Co., Inc.15714 Colorado Ave., Paramount, CA USA 90723-4211Phone (562) 633-0751 Fax (562) 633-9365Zamboni CanadaZamboni Company Ltd.38 Morton Ave. East, Box 1388, Brantford, ON Canada N3T 5T6Phone (519) 758-5000 Fax (519) 758-0500Zamboni EuropeEigentalstrasse 1, Box 123, CH-8309 Nuerensdorf, SwitzerlandPhone +41 44 837 01 91 Fax +41 44 837 01 80

www.zamboni.com

PLUS+1 is a trademark of Sauer-DanfossZAMBONI and the configuration of the Zamboni® ice resurfacingmachine are registered trademarks of Frank J. Zamboni & Co., Inc.Copyright 2010. Printed in Canada GL 10

Electric water valves and blade controleliminate control rods and blade wheel.

Hydraulically actuated wash water pumprelocated for easier service access.

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This brochure is a PDF internet version posted on our website for reference only. The Zamboni Company assumes no responsibility for its content or use. For product and sales information, please contact the Zamboni Company at www.zamboni.com.

89

81.25(77 in. Blade)

(77 in. Blade)

Dependable Sevcon® Gen4 controls have beenproven in applications throughout the world.“On-board” diagnostics provide trouble shootingcapability and vehicle management functions.

Actual Volume 2.83 m3 (100 cu. ft.)Compacted 3.54 m3 (125 cu. ft.)Excess Water 416 L (110 USG, 92 IMP)

Emptyw/Water

4423 kg ( 9750 lb.)5148 kg (11350 lb.)

with 86 in. Conditioner

(277 USG, 230 IMP)( 82 USG, 68 IMP)(195 USG, 162 IMP)Ice Making 738 L

Wash Water 310 L Total 1048 L

77 in. Blade 4.86 m (16.0 ft.)86 in. Blade 5.00 m (16 ft. 4.5 in.)At Conditioner

77 in. Blade

86 in. Blade

1.27 x 12.7 x 195.6 cm! in. x 5 in. x 77 in.1.27 x 12.7 x 218.4 cm! in. x 5 in. x 86 in.

25.4 cm ( 10 in.) dia.25.4 cm ( 10 in.) dia.

Horizontal AugerVertical Auger

4.04 m ( 159 in.)5.03 m ( 198 in.)

Snow Tank DownSnow Tank Up

2.26 m ( 89 in.)3.91 m ( 154 in.)

Snow Tank DownSnow Tank Up

77 in. Blade 2.06 m (81.25 in.)86 in. Blade 2.30 m (90.25 in.)

( 25 USG, 21 IMP) 95 L

1.95 m ( 77 in.)

1.37 m ( 54 in.)

Should I use <…> ?Answer: it depends

Rules of Thumb

prototyping.MongoDB is great, amongst other things, for…

if your queries don’t change and you stay at a “small” scale.

CouchDB is great, for example…

when you value distribution & persistenceabove all else.

BigCouch & Riak are great, amongst other things…

overnight analytics.Hadoop is great, amongst other things, for…

a data glue between multiple parts of your app(queues, caches, etc.].

Redis is great, amongst other things, as…

a starting point to build& extend on.

Cassandra is great, amongst other things, as…

you’d otherwise have to do a lot of self-joins.

Neo4J is great, for example, if…

Seven NOSQL Propositions

A modest proposal

Only use NOSQL if you have to.

Proposition 1[the cardinal]

If you ask for NOSQL by name, you probably don’t need it.

Corollary 1.a

Never forget the operational complexity.

[aside]

Some things will always be better achieved with an RDBMS

Proposition 2[the eternal]

Distribution Modelvs. Data Modelvs. Disk Data Structure.

Proposition 3(the modified Moon methodology)

“If you have a ton of data then you must use one of the distributed datastores and your requirements for how you want to query that data will most likely drive the choice of which database to use.

If, however, you do not have a ton of data then the choice basically comes down to personal preference.”

Catchy phrases are red herrings.

Proposition 4[the nemesis]

“Use the right toolfor the right job.”

“Polyglot persistence.”

Hardware will always help;but it will never save you.

Proposition 5 [the brute]

Given enough time, most NOSQL projects gravitate towards a MapReduce-like model for computations.

Proposition 6 [the Black conjecture]

Trust no one.That goes double if they talk about CAP.

Proposition 7[the paranoïd ]

BuildingAct III