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BIS310: Week 8 BIS310: StructuredAnalysis and Design

Input/Output Design

User Interface Design

- Physical design of output reports

and input forms

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BIS310: Week 8

System Boundary

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Output-design Objectives

Serve the intended purpose

Deliver the right quantity of output Deliver it to the right place Provide output on time

Choose the right method

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Types of Outputs

Internal outputs stay inside the system tosupport the system's users and managers

External outputs leave the system to triggeractions on the part of their recipients orconfirm actions to their recipients Turnaround outputs are those which are

typically implemented as a report eventually re-enters the system as an input

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BIS310: Week 8

SoundStage Entertainment ClubFax 317-494-0999

The following number must appear on all related correspondence,shipping papers, and invoices:P.O. NUMBER: 712812

To: Ship To:SoundStage Entertainment Club SoundStage Entertainment Club2625 Darwin Drive Shipping/Receiving StationIndianapolis, IN 45213 Building A

2630 Darwin DriveIndianapolis, IN 45213

P.O. DATE REQUISITIONER SHIP VIA F.O.B. POINT TERMS

5-3-96 ldb ups N30

QTY DESCRIPTION UNIT PRICE TOTAL

10000 Powder - VHS 19.99 199,900.00

5000 Now and Then - VHS 15.95 79,750.00

2500 Pulp Fiction Soundtrack - CD 7.99 19,975.00

450 U2 on Tour - T-shirt 3.49 1,570.50

Subtotal 301,195.50

Tax 15,059.77

Total 316,255.27

1. Please send two copies of your invoice.

2. Enter this order in accordance with the prices, terms, delivery method, andspecifications listed above.

3. Please notify us immediately if you are unable to ship as specified.

Authorized by Date

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BIS310: Week 8

Invoice No. 301231

Name Carlina Smith Date 7/21/97 Address 3019 Duroc Drive Order No. 346910City Little Rock State AR ZIP 42653Phone 502-430-4545 Payment Amt

Detach and return top portion with payment

Qty Description Unit Price TOTAL1 Star Wars - Empire Strikes Back VHS $19.99 $19.991 Eric Clapton Unplugged CD $13.99 $13.991 Alladin VHS $17.95 $17.95

SubTotal $51.93Shipping & Handling $7.00

Cash Taxes $2.95CheckCredit Card TOTAL $61.88

NameCC # Office Use Only

Expires

RETURN TOP PORTION WITH PAYMENT

SoundStageEntertainment Club2630 Darwin Drive - Bldg BIndianapolis, IN 45213

INVOICE

Payment Details

Customer

Please return top portion invoice with payment. Make checks payable to: SoundStage Entertainment Club.

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BIS310: Week 8

Types of Outputs Detailed Reports:

Present information with little or no filtering or restrictions. Some detailed reports are historical in nature. Detailed reports confirm and document the successful processing

of transactions and serve as an audit trail for subsequentmanagement inquiry.

Exception Reports: Filter data before it is presented to the manager as information.

Exception reports only report exceptions to some condition orstandard .

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Page 1SOUNDSTAGE ENTERTAINMENT CLUB

Products Ordered on 6-31-1996

PO Number Product Number Product Type Quantity In Stock Quantity On Order

112312 102774 Merchandise 273 450202653 Title 75 325393752 Title 251 125

112313 109833 Merchandise 0 200111340 Title 46 150231045 Title 225 1,500253967 Title 332 850

112314 287904 Title 0 2,000699034 Merchandise 0 300836785 Merchandise 35 175984523 Title 213 250

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Page 1SOUNDSTAGE ENTERTAINMENT CLUBDelinquent Member Accounts as of 7-9-1996

(90 Days Overdue)

Number Name Area Code Phone Extension Balance Due

137842 Joe Dunn 317 490-0012 111 29.43142314 Bob Fischer 501 282-7996 43.97157723 Mary Slatter 218 993-9091 56.99209438 Harold Martin 823 231-8355 33.17237121 Kevin Ditmano 655 219-0988 99.23384563 Rick Carlina 501 454-6311 11.23

421134 Barb Kitts 393 789-5412 231 23.66476688 Kenny Bum 443 234-8845 123.77

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Output Media

Paper

Screen Microfilm/Microfiche Video/Audio CDROM, DVD Other electronic media

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Output Formats

Tabular output

Zoned output Graphic output Narrative output

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System User Issues for Output Design

Be aware of output bias. Computer outputs should be simple to read

and interpret.

The timing of computer outputs is important. The distribution of computer outputs must be

sufficient to assist all relevant system users.

The computer outputs must be acceptable tothe system users who will receive them -> Needfor training.

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BIS310: Week 8 BIS310: StructuredAnalysis and DesignDesigning Effective Input

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Input Methods

Batch input Key-to-disk (KTD) and key-to-tape (KTT)

On-line input graphical user interface (GUI) Remote batch

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Trends in Automatic Data

Collection Technology Biometric ADC Electromagnetic (radio)

Magnetic (MICR) Optical ( Bar coding )

optical-mark reader (OMR) or optical-

character reader (OCR) Smart Cards Touch

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System User Issues for Input

Design Capture only variable data . Do not capture data that can be calculated

or stored in computer programs. Use codes for appropriate attributes .

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BIS310: Week 8

Prepared by Kevin C. Dittman forSystems Analysis & Design Methods 4ed

by J. L. Whitten & L. D. Bentley

xxxxx

xxxxxxxxxx xx-xx-xx xxxx

xxxx xxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

xxxx xxxxxxxxxxxxxxx xx x.xx xxx.xx next linexxxx xxxxxxxxxxxxxxx xx x.xx xxx.xx next linexxxx xxxxxxxxxxxxxxx xx x.xx xxx.xx next linexxxx xxxxxxxxxxxxxxx xx x.xx xxx.xx next linexxxx xxxxxxxxxxxxxxx xx x.xx xxx.xx next linexxxx xxxxxxxxxxxxxxx xx x.xx xxx.xx stop

xxxxxxxxxx xxxxxxxxxx xxxxxxxxxx

xxxxx xxxxxxxxxx xx.xxx xx.xxx stopxx-xxx-xxx

Good

Bad

(a)

(b)

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Internal Controls for Inputs

To ensure that the data input to thecomputer is accurate and that the system is

protected against accidental and intentionalerrors and abuse, including fraud

Completeness checks

Limit and range checks Combination checks

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How to Prototype & Design

Computer Inputs Step 1: Review Input Requirements Step 2: Select the GUI Controls Step 3: Prototype the Input Screen Step 4: If Necessary, Design or Prototype

the Source Document

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2

5

13

4

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Example

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User Interface Design

User interface design is the specification of a conversation between the system user and

the computer.

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Interaction Methods and Devices

Command Language Interaction Natural Language Interaction

Form Interaction (Fill-in-the-blank) Key-word search

Menu Interaction Object-Based Interaction (GUI)

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Controlling Data Input

One objective of interface design is toreduce data entry errors

Role of systems analyst is to anticipate usererrors and design features into the systemsinterfaces to avoid, detect and correct data

entry mistakes

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Providing Feedback 1. Status Information

Keeps users informed of what is going on in system Displaying status information is especially important if the

operation takes longer than a second or two

2. Prompting Cues Best to keep as specific as possible3. Error and Warning Messages

Messages should be specific and free of error codes and jargon User should be guided toward a result rather than scolded Use terms familiar to user Be consistent in format and placement of messages

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Providing Help

Place yourself in users place when designing help Guidelines

Simplicity Help messages should be short and to the point Organization

Information in help messages should be easily absorbed byusers

Demonstrate It is useful to explicitly show users how to perform an

operation

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Designing Dialogues Dialogue

Sequence in which information is displayed toand obtained from a user

Primary design guideline is consistency insequence of actions, keystrokes andterminology

State Transition Diagram

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Sample State Transition Diagram

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The Process of Finalizing Design

Specifications Deliverables and Outcome

Set of physical design specifications

Contains detailed specifications for each part of thesystem

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Assignment 5: Input/Output Design

Sample reports: outputs created from yourprototype system OR your design

Sample Input forms (Web-based) Sample of help functions