Multimedia Technologies-1

Multimedia Technologies

Q1: What are the general issues in Multimedia Evaluation?
Q2: In what way multimedia help in education? And what are the different education requirements to implement multimedia in education.
Q3: What do you understand by video compression and explain different compression techniques?
Q4: Explain any three of the following–
The MIDI Format
The RealAudio Format
The AU Format
The AIFF Format
The SND Format
The WAVE Format
The MP3 Format (MPEG)
Q5: What are the desirable Features for a Multimedia System?
Q6: What is hypermedia and explain any one standard of hypermedia?
Q7: What are the recent trends and challenges in the field of multimedia?
Q8: What is multimedia? What are the different multimedia formats?

Case Study
Company A is a small company, which worked on a project to develop a kiosk-based integrated multimedia service for the general public. The purpose of the kiosk was to provide users with information about unemployment benefits, and job and training opportunities. It was specifically aimed at the unemployed, and made no assumptions about the users’ having a knowledge of computers or technology in general. The company had no experience of usability and a limited budget, but felt that usability issues were important and hired the services of a usability consultancy.
Usability testing and evaluation was carried out during the development of the kiosk, with the intention of identifying any significant design problems and providing timely and concise input into the development process. The methods used were–
• User survey and profiling
• Walkthrough evaluation
• Usability testing (three)
• User field trials
The user survey and profiling provided important preliminary information about the users that was useful at the design stage. For example, it confirmed that the target audience would be capable of interacting with a computer system that had basic text information, and it provided information about features that the target audience would see as important if they were going to use the system instead of queuing to talk to an information officer.
The walkthrough evaluation consisted of an expert evaluation and a user walkthrough with a usability expert. Several difficulties were identified and, as a result, the design team realized the danger of assuming the users’ level of domain knowledge, and recognized the need for screen layout consistency, the simplification of user tasks, and giving the users a model of the system structure (e.g. a menu structure overview).

The first usability test was carried out in the consultant’s usability testing lab and the participants competed a predefined set of task scenarios that reflected the intended usage of the system. The results of the test provided a focus for future design efforts, by identifying the characteristics of the system that the users felt were most important; and provided a baseline against which the quality of the kiosk could be assessed.
The design team was able to improve the quality of the application from the detailed design recommendations that were made and broke down the complex procedural tasks into simple units of work with immediate access to support information.
The system was redesigned on the basis of the results of the first usability test. The tasks in the second usability test were identical to those of the first test. The second usability test results showed that the redesign of the system resulted in 70% reduction of the number of problems experienced by participants in the first usability test. This showed that the redesign of the user interface had significantly improved the usability of the system, supporting the positive contribution that can be made by usability testing as part of an iterative design process.
The third usability test was conducted in the Department of Social Welfare. The participants performed identical tasks, but half of them used the system with the aid of an online user assistant agent. The results of the tests clearly showed the benefits of the online assistant in helping the participants achieve their goals, and that there were no usability problems that prevented the respondents from using the system when they had access to the online assistant. The improved attitude towards the system, and the respondents’ ability to use the system without direct help provided reassurance to the development team that, with minor redesigns, the system was ready for User Trials.

Q1. What is the benefit of usability consultants’ involvement throughout the development process?
Q2. In general, what was the output of user trials and how it can be more effectively implemented?

Assignment – C

Q1: ____________ refers to any type of application or presentation that involves more than one type of media, such as text, graphics, video, animation, and sound.
a) An executable file
b) Desktop publishing
c) Multimedia
d) Hypertext

Q2: Images included in many software titles are called–
a) clipart
b) popups
c) jpg files
d) tiff files

Q3: In slide ______ view, you see the entire presentation displayed in miniature. This view is used to arrange the slides in your presentation, as well as, to add animations, transitions and timing.
a) Arranger
b) Creator
c) Shaper
d) Sorter

Q4: PDA stands for–
a) Primary digital asset
b) Processor digital application
c) Personal digital assistant
d) Portable digital armor

Q5: DVD stands for–
a) Digital versatile disc
b) Digital video disc
c) Duplicated virtual disc
d) Double view disc

Q6: “Network of Networks” is defined by–
a) Intranet
b) Internet
c) Extranet
d) None of These

Q7: LAN stands for–
a) Local Access Network
b) Large Area Network
c) Local Area Network
d) None of These

Q8: ISP stands for–
a) Initial Service Provider
b) International Service Provider
c) Internet Service Provider
d) Indian Service Provider

Q9: First Page of any website is known as–
a) Data Page
b) Content Page
c) Index Page
d) Web Page

Q10: Lycos is a an–
a) Search Engine
b) Application Software
c) Browser
d) Plug-in

Q11: Mosaic is a an–
a) Plug-in
b) Browser
c) Helper Application
d) Search Engine

Q12: The main protocol for transferring information of web is–
a) FTP
b) TCP
c) IP
d) HTTP

Q13: Hyperlinks can take you to–
(1) Another webpage (2) Another Text (3) Another Website (4) Nowhere
a) Only 1
b) Only 3
c) Only 2
d) All 1,2,3

Q14: Which of the following is not a stage of multimedia production?
a) Testing
b) Planning and costing
c) Designing and producing
d) Marketing

Q15: According to one quote the multimedia designer is sometimes called–
a) A digital media engineer
b) A pixologist
c) An information designer
d) A meta-data designer

Q16: One of the disadvantages of multimedia is–
a) cost
b) adaptability
c) usability
d) relativity

Q17: The text color in a presentation should contrast with the ________ color.
a) CPU
b) frame
c) stack
d) background

Q18: A smaller version of an image is called a–
a) clipart
b) bitmap
c) portable network graphic
d) thumbnail

Q19: Which one of the following is not/are not typically part of a multimedia specification?
a) Text
b) Odors
c) Sound
d) Pictures

Q20: Which of the following is a term that applies to the spacing between characters of text?
a) Leading
b) Kerning
c) Tracking
d) Points

Q21: Which of the following is a character encoding system?
a) Unicode
b) HTML
c) CSS
d) WYSIWYG

Q22: Which of the following is not a television signal?
a) MPEG
b) NTSC
c) PAL
d) HDTV

Q23: Which of the following is videotape format?
a) GIF
b) DVD-RW
c) S-VHS
d) Hi-8

Q24: Which one of the following is a not real time video compression algorithm such as?
a) MPEG
b) Indeo
c) JPEG
d) DOCX

Q25: Which of the following is Microsoft Windows DIB (device independent bitmap)?
a) bmp
b) dib
c) .rie
d) xls
e) a, b, c

Q26: SMIL stands for–
a) Synchronized Multimedia Integration Language
b) Synchronized Multimedia Interactive Language
c) Simple Multimedia Integration Language
d) Systematic Multimedia Integration Language

Q27: The action which requires calculating the number of frames between key frames and the path of the action is known as–
a) Tweening
b) Anchoring
c) Framing
d) Tracking

Q28: The effect which transforms one image into another is known as–
a) Morphing
b) Kerning
c) Transformation
d) Dividing

Q29: OLE stands for–
a) Object Linking and Enhancing
b) Object Linking and Embedding
c) Object Lining and Embedding
d) Object Linking and Engaging

Q30: The sound format is preferred for Macintosh sound files, where all the sound data resides in data work?
a) AIFF
b) AIFT
c) AAFF
d) AIFI

Q31: Which of the following tools is software tools designed to manage individual multimedia elements and provide user interaction?
a) Anchoring
b) Authorizing
c) Authoring
d) Amendment Tool

Q32: ____Multimedia allows an end user to control what and when the elements are delivered.
a) Interactive
b) Integrated
c) Immediate
d) Isolated

Q33: The picture elements that make up a bitmap are called–
a) Points
b) Co-ordinates
c) Pixels
d) None of these

Q34: . Multimedia can be used for–
a) Entertainment
b) Corporate presentations
c) Education
d) All of the above

Q35: In order to work with multimedia, a personal computer typically requires–
a) A powerful microprocessor
b) Storage capabilities
c) A high-quality monitor
d) All of the above

Q36: Which of the following is not the multimedia object?
a) Applet
b) Image
c) Sound
d) Memory

Q37: Image analysis plays a important role in–
a) Enhancement and restoration
b) Image and video compression
c) Computer animation
d) All of the above

Q38: Which of the following is not in multimedia Network Systems?
a) IP
b) RTP
c) RSVP
d) PAL

Q39: Different content of multimedia data is–
a) Media data
b) Media format data
c) Media feature data
d) All of the above

Q40: Which of these is the correct HTML representation of magenta?
a) 00GGHH
b) #FF00FF
c) 255,0,255
d) %R100-%G0-%B100