Start Is it early? Go back to sleep Get dressed Eat breakfast Time for breakfast? Go to school Stop No Yes No

Professional standards and development  Lesson Objective: Understand what is meant by professional standards  Learning Outcome: Define the key words and give a brief explanation for each. Keywords: de facto standard, agreed standard, Blu-ray Vs HD DVD, programming standards, developmental life cycle,

Question  Avoids confusion  Don’t have to learn another way to do the same task  Can easily share work with other people. What is the point of having standards in industry (e.g. Flowchart symbols)

Two types of standard:  De Facto This is a standard which has not been formally agreed but is widely practised E.g. Flowchart symbols, programming conventions  Agreed A committee or organisation have published a standard to be followed. E.g. Hard disk format, WiFi protocol

Blu-ray vs HD DVD Battle of the standards

Question  Why not let people or the open market to decide upon standards?  Wasteful- people spend money on equipment which becomes obsolete.  Unable to share or communicate between different standards.  People will wait to buy equipment until a single standard is established.

What if there were no standards? Lisa wants to send a text to a guy that she likes, but her Android phone cannot send text messages to an iPhone. They work from a different standard. Louis needs to get onto a website but it is written in Mac-html which is not compatible with his windows laptop.

Why are standards important when working in a company?  Work in teams to develop a system because they all have a common understanding of the design tools and diagrams.  Move between companies because the standards apply across the whole industry.  Pick up someone else’s design and code the program to achieve it.

Programming examples

Programming example(2)

De-facto programming standards:  Meaningful variable names  Useful comments  Indent and show loops and conditions (while and if statements)  Don’t plagiarise other programmer’s code!

Standard for problem solving:

How many of those can you remember? IdentifyAnalyseDesign Code/testEvaluateMaintain

Workbooks!