Modelling and Analysis of Operators Tasks  Assessing Tasks-Systems Compatibility and Performance taking into account Collaborative Activities (Automation and Group Work).

Speaker:  Phillippe Palanque – Toulouse, Cedex, France
Topic(s):  Human Computer Interaction

Abstract

User Centered Design approaches promote the understanding of users’ tasks and activities in order to design a usable system. This presentation focusses on the elements that have to be captured in order to represent in a complete and un-ambiguous way operators’ activities. 

The lecture presents a detailed analysis of the state of the art in the area of Users Tasks Modeling highlighting concepts that have been around since the seminal work from Duncan and Annett in 1967 but also recent additions related to the evolution of work practice such as multiuser collaboration (possibly remote), activities involving multiple devices ... 

The second part of the lecture focusses on the notation HAMSTERS and its dedicated tool for editing and simulating tasks models. One of the particularities of HAMSTERS is that it has been developed and exploited within the development of critical systems (such as satellite ground segments) and thus provides dedicated and unique mechanisms such as components and sub-routines making the notation amenable to large scale interactive systems. 

The third part of the lecture is dedicated to experience reports on the application of the notation to various kind of critical and non-critical systems. This part will show how HAMSTERS can support difficult issues such as: 

- Assessment of task complexity related to the number of information to know (declarative, strategic and procedural knowledge), to manipulate (input and output), number of tasks under temporal constraints … 
- Tasks allocations between collaborating users
- Tasks migrations when considering automation
- Assessment of tasks complexity following tasks migrations (automation and collaboration)
- Assessment of relative tasks complexity of two candidate systems
- Assessment of human error costs with respect to task performance
- Identification of training requirements for operators 

The audience will learn on concrete examples the advantages and drawbacks of using tasks modeling technique with a specific emphasis on HAMSTERS. The examples will be taken from various industrial domains including cockpits of large civil aircrafts, satellite ground segments and Air Traffic Control. Other more mundane examples will be taken from entertainment and web domain. 

About this Lecture

Number of Slides:  130
Duration:  60 minutes
Languages Available:  English, French
Last Updated: 

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