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Case Study
LO: Understand the scenario of the 2011 case study and the software required.
Learning outcome: Give correct response to exam-type questions
Key words:
Liquid Silver, On-line purchasing, Validation, Encoding, Computer workstations, Health and safety
Liquid SilverA Rock band
which is becoming more popular. They have a growing
fan club.
Despite the fact that their music is
really lousy!
They have a small office which runs the admin for their fan club
The office has a number of
networked PCs.
Question …
What types of topology could the company use to link the computers?
Star Ring Line/Bus
What are the advantages and disadvantages of each?
Liquid Silver have a website . . .
What is the purpose of maintaining the website?
Provide background information about the band
Fans can request email updates
Provide facility to join the fan club on-line(or by posting a hand-written form)
Purchase merchandise
Question
List reasons why fans may wish to purchase items over the internet rather than calling and using a credit card?
Easy to search
Can see items
Better security
No waiting if busy
Advantages of an online store
Open 24/7
Don’t have to leave home
Saves money travelling
Easier to search for specific items
Less staff needed to take orders
Open to a wider customer base(e.g. people out of town.)
Question
Liquid silver are planning a 2012 tour. DTP is used to create publicity. What features of DTP make this the best type of software?FramesStylesheets
TemplatesFormatting (advanced)
Graphics (e.g. wrapping)
Using text wrap
This is an example of text wrapping- describe the process of taking an image of a book from the website and wrapping text in a DTP application.
1 Open the website, navigate to the correct page
2 Copy (or save) the image
3 Switch to the DTP application, go to the correct place
4 Paste (or insert) the image
5 Set to ‘wrap’ under the image properties
6 Click away from the image, enter the text
Key features of Databases
Sort by value (queries) Search for records (queries) Share between different users Reports (Output different layout)
General Office admin tools:Databases
Members_File (Database)
Mem No. Surname Forename Contact Number
Postcode Gender
01267 Jameson Katherine 0191201798 ND3 6YA F
10023 Whattaker Barney 0677108715 NS9 4BA M
00876 Lui James 0292652715 BC3 7SB M
The field Mem No. is the key field, what is a key field and why is it used?
It is a unique reference to a single record. It is used to refer to the record in another file/table (foreign key)
Members_File (Database)
Mem No. Surname Forename Contact Number
Postcode Gender
01267 Jameson Katherine 0191201798 ND3 6YA F
10023 Whattaker Barney 0677108715 NS9 4BA M
00876 Lui James 0292652715 BC3 7SB M
What is validation, and why is it used?
Validation is a software check to ensure that the data entered is reasonable
Members_File (Database)
Mem No. Surname Forename Contact Number
Postcode Gender
01267 Jameson Katherine 0191201798 ND3 6YA F
10023 Whattaker Barney 0677108715 NS9 4BA M
00876 Lui James 0292652715 BC3 7SB M
Name the types of validation which can be applied to the field Gender
PresenceLengthType
Members_File (Database)
Mem No. Surname Forename Contact Number
Postcode Gender
01267 Jameson Katherine 0191201798 ND3 6YA F
10023 Whattaker Barney 0677108715 NS9 4BA M
00876 Lui James 0292652715 BC3 7SB M
Describe the steps needed to apply validation to the Gender field so that only the values F or M will be accepted.
1. Enter the Members_File and enter design view
2. Click on the Gender Field
3. Enter the validation rule: “M” or “F”
4. Optionally, enter the validation text: “Please enter M or F”
5. Save the changes
Key features of spreadsheets
Formulas used to make calculations
Appearance (formatting) using features like cell fill and conditional formatting
Graphs and charts to display data.
General Office admin tools:Spreadsheets
Stock_Detail file (Spreadsheet)A B C D E
1 Item Cost Price Selling Price Opening Stock Closing Stock
2 T Shirt £15.00 £18.00 250 102
3 Bag £20.00 £24.00 300 134
4 Wallet £12.00 £14.40 120 40
If the Selling Price is worked out as a formula based on the Purchase price, what formula would you expect to see in cell C2?
=B2*1.2 =B2+(B2/5) =(B2/5)+B2
Answer: Any of the following:
Stock_Detail file (Spreadsheet)
What formula would you expect to see in cell F2?
=D2-E2
A B C D E F G H
1 Item Cost Price
Selling Price
Opening Stock
Closing Stock
Amount Sold
Reorder (<100)
Takings
2 T Shirt £15.00 £18.00 250 102 148 N £2664
3 Bag £20.00 £24.00 300 134 166 N £3984
4 Wallet £12.00 £14.40 120 40 80 Y £1152
Stock_Detail file (Spreadsheet)
What function would you expect to see in cell G3?
=IF
A B C D E F G H
1 Item Cost Price
Selling Price
Opening Stock
Closing Stock
Amount Sold
Reorder (<100)
Takings
2 T Shirt £15.00 £18.00 250 102 148 N £2664
3 Bag £20.00 £24.00 300 134 166 N £3984
4 Wallet £12.00 £14.40 120 40 80 Y £1152
(F3<100 ,“Y”,”N”)
Network Manager
Responsible for ...
Maintenance (for when things go wrong)
Security (e.g. AV and Firewall)
Logins
Backups
Installing software
Network Manager
Responsible for ...
aintenance (for when things go wrong)
ecurity (e.g. AV and Firewall)
ogins
ackups
nstalling software
Go through that again please Kyezha ...
L
I
M
B
S
Three main problems ...Using a computer for hours on end can cause
RSI (Repetative Strain Injury)
Eye Strain
Circulation / back problems
Three main solutions
Take regular breaksIncluding walking around, looking away.
Buy the correct equipmentChair with backrest, ergonomicaly-designed keyboard
Adjust and arrange Monitor at eye level, chair position
Three main solutions
Take regular breaksIncluding walking around, looking away.
Buy the correct equipmentChair with backrest, ergonomicaly-designed keyboard
Adjust and arrange Monitor at eye level, chair position