Podcast: Play in new window | Download

Laws and more rules of thumb to make your projects SOLID!

News and Follow/Ups – 01:00

• Feels like spring kinda, excited for backpacking
• Square works great
• SXSW

Geek Tools – 09:20

• Mountek MT5000 CD Slot Mount

Webapps – 11:27

• Egg Timer – Easy web timer
• JSFiddle – Web-based javascript IDE (via email from Qasim Alyas)

Programming Rules of Thumb Part 3 – 18:18

• Metcalfe’s Law
  • The value of a network is the square of the number of participants
  • Twitter/Facebook/Ebay
• Murphy’s Law
  • Anything that can go wrong, will go wrong
• Brooks’s law
  • Says that “adding manpower to a late software project makes it later – The Mythical Man-Month
• Parkinson’s law
  • Work expands so as to fill the time available for its completion.
• SOLID
  • Stands for five basic patterns of object-oriented programming and design
    • Single responsibility principle – An object should have only a single responsibility.
    • Open/closed principle – Software entities … should be open for extension, but closed for modification
    • Liskov substitution principle – objects in a program should be replaceable with instances of their subtypes without altering the correctness of that program
    • Interface segregation principle – many client specific interfaces are better than one general purpose interface
    • Dependency inversion principle – one should “Depend upon Abstractions. Do not depend upon concretions
• GEFN
  • Good enough for now
• Worse is better
• MVP
  • Minimum Viable Product