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Houston: We are in overload. Gail Murphy University of British Columbia. Note: This presentation involves many animations, videos , etc. Some of these are available on-line (avi files will attempt to play). Those that are not are indicated.

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houston we are in overload

Houston: We are in overload

Gail Murphy

University of British Columbia

Note: This presentation involves many animations, videos , etc. Some of these are availableon-line (avi files will attempt to play). Those that are not are indicated.

Material in this talk is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported license.

slide3
unexpected
  • information overload
slide4
un·ex·pect·ed
  • coming without warning; unforeseen
  • bugs, “found design”, missing documentation, regressions, …
slide5
information overload
  • too much information to make a decision
slide14
information overload ?

source code

search results

file containment

type hierarchy

class structure

slide15
information overload ?

50 lines

3 search hits

60 file items

5 type items

25 class items

slide16
information overload?

source code

search results

file containment

type hierarchy

slass structure

50 lines

3 search hits

60 file items

5 type items

25 class items

grows to hundreds andthousandsfor complete task

slide17
mismatch

Cartoon not licensed for web version

slide18
this talk is about…
  • mismatches between programmers and tools
  • enabling focus and flow for programmers
slide21
mismatch #1
  • questions programmers ask
  • vs.
  • questions tools answer
slide22

Which type represents

this domain concept?

Who implements this interface?

What are the differences

between these types?

What are the parts

of this type?

How are these types related?

What data can we access from this object?

What code is involved in

the implementation

of this behaviour?

Sillito, Murphy, De Volder, FSE 2006

slide30
mismatch #2
  • information programmers need
  • vs.
  • information tools show
slide31
“In a delocalized plan, pieces of code that are conceptually related are physically located in non-contiguous parts of the program”
  • — Soloway, Pinto, Letovsky, Littman and Lampert, CACM1988
  • “the programmers’ central goal for each maintenance task was to collect a working set of task-relevant code fragments”
  • — Ko, Aung, Myers, ICSE 2005
slide33
mismatch #3
  • strategies programmers use
  • vs.
  • strategies tools support
slide34

click to play animations (avi)

Allen, Murphy, de Alwis, 2007

slide36
this talk is about…
  • mismatches between programmers and tools
  • questions
  • information
  • strategies
  • enabling focus and flow for programmers
slide37

focus

flow

flow

focus

focus

slide38

focus

click to play animations (avi)

slide39

flow

Click to play animation form

click to play animations (avi)

slide42
mismatch #1: questions

with Ferret

de Alwis, Murphy, 2007

slide43
mismatch #1: questions

with Ferret

sphere #1

sphere #2

de Alwis, Murphy, 2007

slide44
mismatch #1: questions

with Ferret

de Alwis, Murphy, 2007

slide45
mismatch #1: questions

with Ferret

focus

flow

based on a small diary study

de Alwis, Murphy, 2007

slide46
mismatch #2: information

with Mylyn

currently

Kersten, Murphy, 2007

slide47
mismatch #2: information

with Mylyn

interest

Kersten, Murphy, 2007

slide48
mismatch #2: information

with Mylyn

click to play screencast (avi)

(demo portion unavailable on-line)

Kersten, Murphy, 2007

slide49
mismatch #2: information

with Mylyn

flow

focus

based on a field studyand huge user community (1M+ downloads)

Kersten, Murphy, 2007

slide50
mismatch #3: strategies

currently

click to play screencast (avi)

slide51
mismatch #3: strategies

with web-style navigation

click to play demo (avi)

slide52
mismatch #3: strategies

with web-style navigation

demo unavailable on-line

Sherwood, Murphy, 2007

slide53
mismatch #3: strategies

with web-style navigation

flow

focus

tbd

slide54
a lurking problem

video used in talk unavailable on-line

slide56
a looming problem
  • more artifacts, looser structure
slide57
what to do?
  • 1. enhance system structure model
  • 2. rethink the model(s) behind the tools
slide58

meghan allenjohn anvikelisa baniassadwesley coelhodavor cubranicbrian de alwisrob elvesthomas fritzjan hannemannlyndon hiewreid holmesmik kerstenseonah leeshawn mintomartin robillardizzet saferdavid shepherdducky sherwoodannie yingtrevor youngrobert walkerand others!

slide59
so…information
  • information
  • information
  • information
  • information
  • Information
  • information

Cartoon not licensed for web version

slide60
mismatch
  • questions information strategies
slide61

cartoon not licensed for web version

{add, compute, present} informationwith focus and flow

to manage information effectively

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