COMP 106 Human Centric Computing

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COMP 106 Human Centric Computing

• Assignment 2
• Proposal 14

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On-line Library Catalogue Metaphor

• Metaphor Use a text book to represent an on-line
  library catalogue.
• People often associate books with a library.
• An on-line library catalogue contains different
  pages with information.
• The catalogue will have a table of contents
  listing the different sections and chapters.
• (i.e. Chapter 1. Search Methods
• Section 1.1 Author.pag
  e 2
• Section 1.2 Title......
  ...page 100
• Section 1.3 ISBN/ISSN..............
  ................................page 200
• ..
• Chapter 2. Your Library Record
• Section 2.1 Reserving
  books.page
• Section 2.2 Ordering
  books.......page
• Section 2.3 Renewing
  books.....page
• ..ect)

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• When the user clicks any of the options under the
  chapter title Search Methods, a page will come
  up with an alphabetised list through which the
  user can scroll and a text box at the top in
  which the user can type in his or her search item
  rather than scrolling.
• There will also be an option to print out the
  location of the item that the user wants to find
  in the library.
• The table of contents will also have sections for
  other options such as
• Book suggestions
• Selling and buying used books
• Lists of new books and books on order
• Virtual library tour
• Link to library homepage
• Other library information
• Whats new
• Catalogue help
• Index of subjects
• The catalogue will have an index that will
  contain a list of all the subjects offered at the
  university and a link to take the user to the
  page that they are located on.

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• At the bottom of each page there will be a link
  that will take the user back to the table of
  contents or a link to take the user back to the
  previous page.
• As well as being able to reserve the items that
  our out on loan, the user will be able to reserve
  items that are in the library, guaranteeing that
  the user will get the item when he or she
  physically goes to the library.
• There will also be an option to cancel a
  reservation.
• The user will also be able to buy used books for
  which the library may have bought replacements.
• The user can also sell the library books that are
  in good condition.
• Exploit knowledge of
• How people use a text book to find certain
  sections, chapters, or pages by using the table
  of contents or index.

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Metaphor Source Characteristics

• Objects and Attributes
• Book size, colour, pages
• Table of contents chapter names, section names,
  page numbers
• Index subject names, page numbers
• Pages text, page numbers
• Relationships
• Table of contents, index, section names, chapter
  names, subject names, page numbers, text are
  contained on pages.
• Pages are contained within a book.

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Metaphor Target Characteristics

• Objects and Attributes
• Table of contents buttons, scroll bars, links,
  chapter names, section names, page numbers
• Index buttons, scroll bars, link, subject names,
  page numbers
• Pages text, links, scroll bars, text boxes,
  buttons
• Relationships
• Table of contents, index, buttons, scroll bars,
  links, chapter names, section names, subject
  names, page numbers, text, text boxes are all
  contained on pages.

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Mappings
Task How the user performs it How the interface performs it
Task 1 Go to desired section of library. Look at table of contents for desired option and click to go to page.
Task 2 Look for desired labelled section of library. Click on index and then click on desired subject to go to page.
Task 3 Make book suggestions in person or write to library. Click on book suggestion link and fill in necessary information.
Task 4 Fill in a reservation card at the Issue or Information Support Desk. Click on link to reserve desired item, fill in your name, University ID, and pin.
Task 5 Go to library to buy or sell books. Click on link for buying or selling used books and fill in necessary information.
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Possible Mismatches

• Users may not realise that they can reserve books
  that are not out on loan.
• Solution Place a reserve button next not out on
  loan.
• Users may not realise that certain words are
  links to other pages.
• Solution Make links stand out against the rest
  of the text.
• It might not be apparent to the user that the
  location of the desired item can be printed out.
• Solution Clearly place a print option on that
  page.