1. System Analysis and Design
System Design
- Mr. Ahmad Al-Ghoul
Hi students how are you doing this is the first sequence from the design chapter
In this sequence we will discuss objectives and issues for output design and various types of output design

2. System Analysis and Design System Design
Learning Objectives
Understand the objectives for effective output design.
Discuss output design issues and various types of output
Discuss factors that must be considered when choosing an output type
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System Analysis and Design System Design

3. System Analysis and Design System Design
Introduction
Output is information delivered to users through the information system
Output can take many forms: the traditional hard copy of printed reports, and soft copy such as computer screens
Useful output is essential to ensuring the use and acceptance of information system
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System Analysis and Design System Design

4. Output design objectives
Output should be designed to
Serve the intended purpose
It is not enough to make a report, screen, or web page available to users, you must find out and specify what purposes must be served
Output designed based on those purposes
Designing output to fit the user
With a large information system serving many users for many different purposes, it is difficult to personalize output
During fact-finding, it will be possible to determine which output users need and prefer
Deliver the right quantity of output
More is not better
The system must provide what each person needs to complete his or her work
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System Analysis and Design System Design

5. Output design objectives
Output should be designed to
Make sure the output is where it is needed
Output is often produced at one location, and then distributed to the user
To be used and useful, output must be presented to the right user
No matter how well designed reports are, if they are not seen by the suitable user, they have no value
Provide output on time
Time play a large part in how useful output will be to decision makes
Many reports are required on a daily basis, some only monthly, others yearly, and others only by exceptions
Choose the right output method
Output can take many forms
You need to recognize the trade-offs involved in choosing an output method
Output methods affect, flexibility, durability, distribution, storage and retrieval possibilities
The choice of output methods is not trivial
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System Analysis and Design System Design

6. System Analysis and Design System Design
Output Design
Before designing output, ask yourself several questions:
What is the purpose of the output?
Who wants the information, why it is it needed, and how will it be used?
What specific information will be included?
Will the output be printed, viewed on-screen, or both?
When will the information be provided, and how often must it be updated?
Do security or confidentiality issues exist?
Your answers will affect your output design strategies
Some of the information needed to answer the questions was gathered during the system analysis phase
To complete your answers, you should meet with users to find out exactly what kind of output is needed
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System Analysis and Design System Design

7. System Analysis and Design System Design
Output Design
Types of Output
Most system output is printed in reports or displayed on screens
New technologies has had an enormous impact on how people communicate and obtain information
In the systems design phase, you must design the actual reports, screen forms, and other output delivery methods
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System Analysis and Design System Design

8. System Analysis and Design System Design
Output Design
Types of Output
Internet-based information delivery
Web designers must provide user friendly screen interfaces that display output and accept input from customers
Customers visiting the company site can see outputs like list of items, prices, and product availability
Anther example of Web-based output is a system that provides customized responses to product or technical questions
has become an essential means of internal and external business communication
Companies use to send new product information to customers, and financial services use messages to confirm online stock trades
Employees use to exchange documents, data, and schedules and to share business-related information they need to perform their jobs
Audio
Firms use automated systems to handle voice transactions and provide information to customers
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System Analysis and Design System Design

9. System Analysis and Design System Design
Output Design
Types of Output
Automated facsimile systems
Firms use automated facsimile, or called Faxback systems, to allow a customer to request a fax using , via the company web site, or by telephone
Requesting might be technical updates, information on new device drivers, or product assistance
Computer output microfilm (COM): records the images on a roll of film, microfiche records images using small sheet of film
Microfilm, microfiche, capture an image of document and produce film output
Users can retrieve, view, and print the images
Computer output to laser disk (COLD): anther way to store images of paper documents
Paper is scanned, and the digital image is stored on a high-density laser disk medium
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System Analysis and Design System Design

10. System Analysis and Design System Design
Output Design Issues
Specialized Forms of Output
An incredibly diverse marketplace requires a variety of specialized output
Examples:
Automatic teller machine (ATM) that process bank transactions
Special-purpose printers that produce labels, photos, and lottery tickets
Plotters that produce high-quality images such as maps
Output from one system often becomes input into another system
Although digital technology has opened new horizons in business communications, printed output still is the most common type of output
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System Analysis and Design System Design

11. System Analysis and Design System Design
Output Design
Types of Output
Types of output differ in their
Speed
Cost
Portability
Flexibility
Storage and retrieval possibilities
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System Analysis and Design System Design

12. System Analysis and Design System Design
Output Design
Factors that must be considered when choosing an output type are
Who will use the output?
Job requirements help dictate what output method is appropriate
How many people need the output?
If many people need the output Web-based documents are suitable
If one user need the output, screen, or audio may be more suitable
Where is the output needed?
Information that will remain close to its point of origin that will be used by few users, can be printed
An abundance of information that must be transmitted to users at great distance may be better distributed electronically
What is the purpose of the output?
If the output is intended to be a report created to attract shareholders to the business , printed output is desirable
What is the speed with which output is needed?
Operations management need output rapidly so that they can quickly adjust to events, online screen output may be suitable here
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System Analysis and Design System Design

13. System Analysis and Design System Design
Output Design
Factors that must be considered when choosing an output type are
How frequently will the output be accessed?
Infrequently accessed output that is needed by only a few users is well suited to microfilms
How long will the output be stored?
Printed or paper output influence by time
Microfilms is not influence by environmental effects such as light, humidity, and human handling
Under what special regulations is the output produced, stored, and distributed?
The appropriate format for some output is regulated by the government
What are the initial and ongoing costs of maintenance and supplies?
The initial costs of purchasing or leasing equipment must be considered as yet anther factor that enters into the choice of output type
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System Analysis and Design System Design

14. System Analysis and Design System Design
Sequence Summary
Output is any useful information or data delivered by the information system or decision support system to the user
Output can take virtually any form, including print, display, Internet-based information delivery, , audio, automated facsimile systems, Computer output to laser disk, and microfilms
The systems analyst has six major objectives in designing output. They are to design output to serve the intended purpose, to fit the user, to deliver the right quantity of output, to deliver it to the right place, to provide output on time, and to choose the right output method
Output technologies also differ in their speed, cost, portability, flexibility, and storage and retrieval possibilities
All the pervious factors must be considered when deciding among print, display, audio, electronic, or Internet based output, or a combination of these
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System Analysis and Design System Design

15. System Analysis and Design System Design
Sequence Summary
In this Sequence we have
Defined the term system output
Explained the six major objectives for effective output design.
Described and distinguished between the various types of output
Explained the factors that must be considered when choosing an output type are.
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16. System Analysis and Design System Design
Reference
[1] System Analysis and Design, Sixth Edition
Authors: Gary B. Shelly, Thomas J. Cashman and Harry J. Rosenblatt ,
Publisher: SHELLY CASHMAN SEWIES.
[2] system analysis and design, sixth edition
Authors: Kenneth E. Kendall and Julie E. Kendall
Publisher: Prentice Hall
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