Johan F. Hoorn 1

Off-line Design of a Handheld Security MonitorHandSeM

Faculty of SciencesDivision of Mathematics and Computer Science

Department of Information Management and Software Engineering

2002

Johan F. Hoorn 2

CASE # 1

At 1:24 a.m. March 18,1990 as St. Patrick's Day came to a close thieves struck the Isabella Stewart Gardner Museum in Boston MA. The biggest art theft in U.S. history remains unsolved.

A five million dollar reward has been offered for the safe return of the art. Although statutes for criminal prosecution may have lapsed, the paintings are still considered to be stolen property.

The most valuable painting taken is Jan Vermeer's "The Concert". It is one of approx. 35 known works by the great Dutch painter. If you have any information about this case please contact the appropriate officials

MAJOR ART THEFTS"A Search For The World's Most Wanted Art"We are seeking information about these cases:

1. The Vanishing Vermeer $5,000,000 rewardBoston, MA USAGardner MuseumMarch 18, 1990

Johan F. Hoorn 3

Off-line Design of a Handheld Security MonitorHandSeM

Frame from diskettefiling box

Off-line Design of a Handheld Security MonitorHandSeM

Alarm

How to selectalarm sector?

- touchscreens?- pointer?- extra buttons?- or combine?

Wirelessconnection tosurveillancecameras

Johan F. Hoorn 4

Off-line Design of a Handheld Security MonitorHandSeM

Frame from address filebox

Off-line Design of a Handheld Security MonitorHandSeM

Wirelessconnection tosurveillancecameras

How to identifythe user?

Alarm- fingerprints?- eye scan?- handwriting?

(neural net)

Guard’s name

- virtual keyboard?

QWERTYUIOPASDFGHJKLZXCVBNM

Johan F. Hoorn 5

Off-line Design of a Handheld Security MonitorHandSeM

Off-line Design of a Handheld Security MonitorHandSeM

How to identifythe user?- fingerprints?- eye scan?- handwriting?

(neural net)

- palm print? (on the back)

- virtual keyboard?

Johan F. Hoorn 6

Off-line Design of a Handheld Security MonitorHandSeM

Off-line Design of a Handheld Security MonitorHandSeM

How to switchif there are eight sectors?Alarm

Guard’s name

- touchscreens?- pointer?- extra buttons?- automatic?13-23557

REWARD

Johan F. Hoorn 7

Off-line Design of a Handheld Security MonitorHandSeM

Off-line Design of a Handheld Security MonitorHandSeM

How to switchif there are eight sectors?

- touchscreens?- pointer?- extra buttons?- automatic?

- or use back side?

13-23557

REWARD

Johan F. Hoorn 8

Off-line Design of a Handheld Security MonitorHandSeM

Off-line Design of a Handheld Security MonitorHandSeM

How to takenotes?

13-23557

REWARD

- speech?Alarm

- write?

Saw suspect

QWERTYUIOPASDFGHJKLZXCVBNM

- virtual keyboard?

Johan F. Hoorn 9

Off-line Design of a Handheld Security MonitorHandSeM

Off-line Design of a Handheld Security MonitorHandSeM

13-23557

REWARD

Alarm

I run to back

- wireless, continuous, and on-line?

How totransmit data?

- docking station?

Johan F. Hoorn 10

Off-line Design of a Handheld Security MonitorHandSeM

- or use the floppy drive?

Johan F. Hoorn 11

Exercise: Design HandSeM from the options just presented

Provide the most functionality with the least number of buttons and gadgets

Avoid buttons or options with multiple functions

Operation of device should be intuitively clear

Play a scenario to explore the user tasks

Johan F. Hoorn 12

System requirements(and possible solutions)

Selection of alarm sector (touchscreen, pointer, extrabuttons, or a combination?) User ID (fingerprint, eye scan, handwriting, virtualkeyboard, palm print?)

Monitor > 4 sectors (touchscreen, pointer, extrabuttons, automatic, back side of device?)

Make notes or log (speech, write, virtual keyboard?)

Transmit data (wireless, continuous, on-line, dockingstation, 3½ floppy drive?)

Johan F. Hoorn 13

First usability test by playing scenario’s:What functionality is (not) needed?

Guard is alone and taken hold of by art thief

Guard is in late-night firefight and wants back-up

Guard works while public is in museum

Colleagues bring together a search posse