Don Norman’s Interlocks and Forcing Functionswiki.ggc.usg.edu/images/f/f3/11_myDOETTInterlocksAndForcing... · Don Norman’s Interlocks and Forcing Functions Jim Rowan Georgia

Don Norman’s Interlocks and Forcing Functions

Jim Rowan Georgia Gwinnett College ITEC 4130

Forcing Functions

  Things (either physical or virtual) that force behavior

  Come in the form of constraints –  Interlocks – Lock-Ins – Lock-Outs

Interlocks

Physically block one action by placing the first task in the way of the second

Forcing Function

  Lock-Ins – You can’t quit Powerpoint without either

saving your changes or intentionally disposing of them

Lockout