Igcse Ict Session 8 Pt2

Front 1

What are different types of data capture?

Back 1

paper forms, on-screen forms, barcode reader, fingerprint reader, card reader, camera

Front 2

Give examples of use of different types of data captures,
paper forms, on-screen forms, barcode reader, fingerprint reader, card reader,paper forms, on-screen forms, barcode reader, fingerprint reader, card reader, camera

Back 2

paper forms - OMR, MC Questionss;
on-screen forms - Uni application;
barcode reader: POS, stock control;
fingerprint reader: security door;
card reader: EFTPOS
camera: still image, student card

Front 3

What are different form controls in an online form? and their use.

Back 3

textbox: name
buttons: submit/cancel
radio button: gender option
checkbox: option for more than one choice;
drop-down menus: list selection.

Front 4

What are needed to create a online form for a club membership appliation?

Back 4

1. include ALL fields: name, age, gender, address,
2. use of suitable form controls: e.g. radio button for gender/title;
3. enough space for each field: e.g. name
easy-to-understand instructions
good use of screen area.

Front 5

What is verification?
What is validation?

Back 5

Verification is to check that data is correctly entered; i.e. no transcription error.

Validation is to check the data is reasonable/sensible.

Front 6

What are the ways of verification?
What are their advantages/weakness?

Back 6

proof reading; viusal check; double entry;

Proof reading: simple/quick but not catching every mistake;
double-entry: time consuming but catching almost every mistake.

Front 7

What are data validation techniques?

Back 7

Presence check; range check; length check; type check; format check;

Front 8

What are the three types of test data?

Back 8

1. normal data values: normal data which should be accepted;
2. extreme data values: "boundary" data which are the limits of the normal range and should be accepted.
3. abnormal data values: invalid data which should be rejected.

e.g. "age" field for membership, 18 to 60 years old.
normal data: 24, 40
extreme data: 18 and 60
abnormal data: 11 and 75

Front 9

What are the two types of documentation and their use?

Back 9

1. user documentation
-for the users
-non-technical
-how to use the h/w or s/w
-e.g. of contents: min h/w and s/w requirement; how to install; how to start/stop; inputs/outputs; troubleshooting guide; error message; etc.

2. technical Documentation:
-for maintainers/techincal people
-how the system works
-contents include:
details of h/w and s/w requirement; data structure; expected inputs; validation checks; how data is processed; flowcharts; diagrams of data move.

Front 10

What are the four different ways of implementation? what are their advantages and disadvantages?

Back 10

1. Direct changeover
2. Parallel running
3. Phased implementation
4. Pilot running

More details, pls go to:
http://www.igcseict.info/theory/8/implem/index.html

Front 11

What are the general criteria of evaluating a system?

Back 11

1. Efficiency? (both time and resouces.)
2. Effectiveness/Appropriate?
3. Easy to use/User friendly?

Front 12

How is system evaluated?

Back 12

check against
1. requirement specification/successful criteria; user requirement
2. Users' responses