Docstoc

6A

Document Sample
6A Powered By Docstoc
					eHome Control Panel
  Remote control your home.




                              1
          Idea behind eHome
•   Next generation Home
•   Technology embedded in appliances
•   Control data at central server
•   Central server accessed by PDA, PC,
    Smart phone, etc.




                                          2
           General Characteristics
• Rooms
  –   Living
  –   Kitchen
  –   Master Bedroom
  –   Children Bedroom
  –   Master Bathroom
  –   Other Bathrooms
• Devices
  –   Computer
  –   Television
  –   Telephone
  –   Fridge
  –   Microwave
  –   Dishwasher
  –   Lights, Temperature, Fragrance.

                                        3
             Home




Group Task   Room Task   Security




 Devices     Messages    Scheduled
                           Task




Shortcuts       Help


                                     4
         System Requirements
•   The system shall automate the general working of a
    normal home.
•   The central server of the system will be accessed from
    an outside computer or a PDA.
•   The central server will store all the data pertaining to
    the house and it’s current conditions.
•   The embedded devices in the appliances at home
    shall interact and co-ordinate with each other. These
    devices shall report to the central server.
•   The system shall minimize human efforts and make
    things simpler and easier to work.


                                                           5
        System Requirement II
•   The system shall maintain specific conditions of the
    home as per user requirements.
•   The system shall detect natural occurrences and
    report to the user of the system.
•   The computer system can notify/report the user in
    case of any emergency like fire or theft along with the
    report to the concerned public services department.
•   The system shall allow the user to schedule tasks and
    the system shall function according to the schedule.
•   The system shall use communication technologies like
    GPRS, WAP, EDGE, CDMA to support handheld
    devices.
•   The system shall provide secure login over all
    supported protocols.
                                                              6
                      Site Map
• Security feature constantly monitor the environment at
  home.
• On detection of unusual activity, reports to the user and
  also directly to public services like police or fire
  department during emergency.
• Users can schedule tasks for the day. Update their
  scheduled tasks.
• Hence Security feature cannot be added to Scheduled
  Task (pointed in the assignment).



                                                              7
                   Site Map I
– Group Task (tasks can be done on whole group of
  rooms)
   • First Floor
        – Lights
            » Toggle Lights [On/Off]
            » Set Intensity
            » 15% 50%         75%    Custom
        – Set Temperature
            » 60      70      80     Custom
        – Vacuum this selection
        – Release Fragrance
            » Rose            Sandal        More…
   •   Second Floor
   •   All Bathrooms
   •   All Bedrooms
   •   Add Custom Group
                                                    8
                   Site Map II
– Room Task (tasks to be done on individual rooms)
   • Master Bedroom
   • Master Bathroom
      – Prepare Bath
      – Common Options
   • Kitchen
      – Fridge
          » Check current supplies
          » Order more supplies
          » Set Temperature
      – Dishwasher
          » Program
      – Microwave Oven
          » Program
   • Other Rooms

                                                     9
                   Site Map III
– Security
   • View Report (a regular security check is done and reports are
     maintained)
   • Do Security Check
   • Report Issue (any issue could be reported to the Police or Fire
     services etc)
– Devices (home devices can be controlled or monitored directly
  from this menu)
   • Computer
       – Connect to computer…
   • Master TV
       – Schedule Recording
   • Telephone
       – Check Voice Messages
       – Change Recorded Message
   • Other Devices ( Fridge, Microwave etc)


                                                                       10
                   Site Map IV
– Messages (the e-house system generate messages that can be
  read here)
   • Read New Messages
   • Message Archive
– Scheduled Task
   • Check Scheduled Tasks
   • Schedule New Task
– Shortcuts
   • Prepare Master Bath
   • All House Lockdown
   • Add Custom Shortcut…
– Help
   • Search Topics
   • Enter Keyword
   • Contact


                                                           11
             User Characteristics
• This system’s users are spatial/intuitive.
• They will respond to pictures and explore the system’s physical
  environment to form a correct mental model of the system.
• Their attitude toward the system is negative and motivation to use
  the system is low.
• They perceive the system as a method to use to obtain a goal.
• Their positive response to the system depends solely on its ability to
  perform a familiar task efficiently and they would not perceive any
  value to the system beyond that.
• Users shall have knowledge of operation computer systems /
  handheld PDA’s and other technical instruments




                                                                      12
               Task Analysis
•   The Major Tasks in our System can be
    classified below
    1) Control the environment of the home
       through a central server system
    2) Schedule tasks for making automatic
       adjustments
    3) Receive regular reports of the current
       condition at home.
    4) Report emergency notes to Police/Fire
       department.
                                                13
       Data Flow Diagram
                                                          Light
                            Fragrance                     control
                            Control
       Temperature                                C                         Water
       control                                                              Control
                              C                                C
                                            C
   Sensor              C
   Devices                                                          C             Vacuum
                                                                                  control
             RA
                  Request
                  service                CENTRAL                        C
    USER                                 SERVER
                     Report                                                      Kitchen
                                                                                 control

                                                                            C
    FIRE               RE                             C
    DEPT.
                                                                            Phone
                                                                            Control
                       RE
                                        TV, PC, Printer,
    POLICE                              Webcam etc
    DEPT.                               control


LEGEND:     RA: Report Activity; RE: Report Emergency; C: Control Signal                    14
              User Workload

• Users are not under any duress when they
  perform this task.
• Under normal circumstances the environment is
  friendly and while speed and efficiency are
  important for the system’s success, the users
  are free to perform at their own pace in familiar,
  easily accessible surroundings.
• Complete knowledge of the system is easily
  acquired with one use.
                                                   15
 Environmental Considerations


• Risks to successful system use include
  inclement weather where the sensor and
  embedded devices are located.
• Central Server has the danger of natural
  calamities like earthquakes, volcano’s.
• Regular backup needs to be taken.
                                             16
                      Dialog Styles
• Characteristics of a general user of the system is given below
   – Attitude: Negative
   – Motivation: Low
   – Typing Skills: Low
   – System Experience: Low
   – Task Experience: High
   – Application Experience: Low
   – Use of other systems: Frequent
   – Computer Literacy: Moderate
   – Frequency of Use: Moderate
   – Primary Training: None
   – System Use: Discretionary
   – Turnover Rate: Low
   – Task Importance: High
   – Task Structure: High
• Legend : Bold : 1st pass ; Underline : 2nd pass

                                                                   17
Dialog Styles




                18
Dialog Styles




                19
              Dialog Styles
• Table explicitly comes to the conclusion of
  using menu based dialog style for
  satisfying user characteristics.
• Course notes (3-11, 3-39) suggest us to create
  logical, distinctive, and mutually
  exclusive semantic categories with clear
  meanings.
• We have used selection based design for
  our user interface.

                                               20
                I/O Devices
• I/O devices are classified into two categories
  – Web based
  – Handheld device based
• Desktop’s, Laptop’s have keyboard and mouse
  for input, monitor and LCD screen for output
• Handheld devices like smart phone,
  communicator have their respective input
  buttons and display screen for output.
• Additional devices are printers for printing
  reports and schedules, microphone for recording
  sound.

                                                   21
             Prototype Design I
• While making the prototype, we cited from the following
  website.
• http://www.nectarmarketing.com/websiteconsulting/webs
  ite-critique.shtml
• We assessed our system according to industry standard
  practices involving:
• Navigation
   – Navigation access to homepage
   – Navigation consistency
   – Help Pages and Site Map.


                                                        22
              Prototype Design II
• Usability
   – Clarity of services
   – Images and illustration quality
   – Capabilities or functions
• Design
   – Unique features
• Content
   – Format and Layout
   – Appropriate use of headers and links




                                            23
24
25
26
27
28
29
30
31
32
33

				
DOCUMENT INFO