developing for the geoweb: notes from the field dev summit 2009

notesfrom the

field

mostof

aretechnologists

we

we arecomfortable

complexitywith

impactdoes this

our projects

how

February 2005

Techical:Google Maps is releasedJesse

So what?

web 2.0

expectationschanged

forever.

we(technologists)

whatbox?

“data”

“interface”

“tools”

“tasks”

we

throw out…must

simple tools

complex questionsanswering

February 2005the lesson of

wheretostart?

GeoWeb

address

businessin a

browser

problems

spatial

publish&

servicesconsume

but…

to besuccessful…

we

understand…must

featurestrumps

usability

we

master…must

XHTMLCSS Ajax

JavascriptRSS

XML

.NET

JSONREST

TDD

WMS

WFS

GeoRSS

Atom

moreto learn

Same toolsSame workflowsSame terminologyWorse performance

Todays Lesson Plan

1. Object Oriented Javascript2. Ajax: GETting and POSTing3. Intro to JQuery and Dojo4. Designing RESTful services5. JSON and JSONP6. CSS and browser tweaks7. Silverlight & Flex

moretools

we

understand…must

whatuserswant

userswant

howdo we

tacklethis?

designideas

please!examples

ArcGIS Server 9.2

Internal workflow application

SAP integration

Road Project Management

OpenLayers + WMS + Dojo

1

ArcGIS Server 9.3 REST

workflow application

multi-service “mash-up”

Emergency Response

ESRI JS API + Dojo

2

ArcGIS Server 9.2 + Custom Tile Server

public facing

focused search tools

avian influenza tracking system

virtual earth + dojo

3

interfacedesign

fewerlayers

Cram desktop intoA browser

Screen shot of CDOT

providefeedback!

whatshould

I do?

handle

“null-case”the

make itfast!

SAP Get Project List

hold theirhand

hide thedetails

languagematters

Locate structures near my project.

reallymeans…

generic tool could

work…

fortechnologists

reassurethe user.

validate

possibleas soon as

SAP Ref Selection

pre-validate

possiblewhenever

protectusers fromthemselves

whew!

systemdesign

projectprocess

lowvalue

just-enoughdesign

map theworkflow

iterate

paperon

• Create wireframes

choose

canvasa map

keep itsimple

defineservices

REST API

customservices

notavailable

possible

optimalbut not

“chatty”

faster

detailsplease!

use theSOAP API 1

Web Server ArcGIS Server

AG

S SO

AP

AP

I SOC Process

ASP

.NET

MV

C A

pp

IIS

Co

ntr

olle

r

SOAP

JSON

COM utilities& 2

server objectextensions

Web Server ArcGIS Server

Web

Ser

vice

AD

F C

on

nec

tio

n SOC Process

COMUtility

ASP

.NET

MV

C A

pp

IIS

Co

ntr

olle

r

SOAP

JSON

can wecode now?

startcoding!

match

modelthe

MARC SCREENS

releaseearly

releaseoften

listenfeedback

Summary:

expectations: changed

kung-fu: needed

design: workflow

focus: usability

performance: critical

details: hidden

dbouwman@dtsagile.com

http://blog.davebouwman.net

Dave Bouwman

http://twitter.com/dbouwman