1. Unit 6 – Assignment 1 (P2, P3 and P4)
Software Design and Development
P2 Look at factors influencing the choice of programming language
P3 Explain sequence, selection
and iteration as used in computer
Programming
P4 Data Types Recap

2. Data Types Integer Date Single
Using these clues, name some types of data types?
Integer
Age
Date
DOB
Single
Height

3. Now Given the following scenarios write down the name of the variables, state the data types and reasons for choice
Discuss in pairs the following (1 min)
Turn a light on or off
Total of the shoe order
Current time
Calendar date for appointment
The length of an Olympic pool
User password

4. Factors AFFECTING CHOICE OF PROGRAMMING LANGUAGE
Organisational Policy
Large organisations have a policy as to what hardware and software is to be used
Different manufacturers taken into account
Suitability in terms of features and tools
Will it work on the hardware platform
Does it have appropriate features – Windows programming is supported by languages such as VB
Availability of trained staff
Programmers may be trained in a particular language
Reliability
Features built into the language – find out about Ada and its uses
Development and maintenance costs
Some languages can cut the development costs
Expandability
Some software may have to support hundreds of users and some languages expand in scale better than others

5. Some languages to research regarding their uses and features to help with P2
VB and VBA
FORTRON
COBOL
PYTHON
PASCAL
JAVA
C++
PROLOG