Sequence+Model



"A sequence model represents work tasks.” (Benyon, Turner, 2005) The sequence model is similar to the flow model where it shows a model for both sides i.e. employee and management. A sequence hence the name displays a model that take the individuals in steps (sequence) so the individuals know exactly what should be completed in what order. Beyer and Holtzblatt mention four critical components that are required in the sequence model: intent, trigger, series of steps, and breakdowns.

The //intent// is the whole purpose of creating a sequence model, the reason why we it was required to be designed.

The //trigger// causes the sequence of action. (Benyon, Turner, 2005) The intent and trigger are correlated. “The intent is the reason why a sequence action is taken; the trigger is the event which sets it off.” (Benyon, Turner, 2005) In each step, something has to trigger the next step before it the next step can occur.

The //steps// to the sequence model are designed to show us what we should do, so that individuals could carry out the procedure. The steps are designed so that individuals are enabling to follow step by step to complete the task. The steps should be precise so it minimizes the problems and also individuals should not carry assistance.

The last component is //breakdowns//, which troubleshoots any problems that the individual comes across during the process.

Example of Sequence Model :


Benyon, David, Phil Turner, and Susan Turner. //Designing Interactive Systems//. London: Addison-Wesley, 2005.

Beyer, H. and Holtzblatt, K, (1998) //Contextual Design//. Morgan Kaufmann, San Francisco.