Standard Usability. Human-centred design for interactive systems Jonathan Earthy Principal Human Factors Specialist. Overview of presentation. What’s the problem? Usability – what is it? How to achieve it A standard approach Relation to systems and software engineering
Human-centred design for interactive systems
Principal Human Factors Specialist
I use an IT system to do my job. However this IT system is very inefficient; it’s almost unusable. I don’t perform as I should and the IT system is the main cause.
I ask for a better IT system or another job.
Ever had a letter like this from your employee?
Employees have learned to do as told to the best of their abilities. They don’t express this kind of feelings.
Users rightfully demand better tools to do their jobs, except if these tools are IT systems.
This is not right and does not help the business to achieve better results.
The capability of a system to enable
specified users to achieve
in specified contexts of use.
equipment (hardware, software and materials),
and the physical
and social environments
in which a product
*formerly ISO 13407
context of use
Specify the user
Plan and manage
the HCD process
ISO/IEC 15288 and 12207 Systems and software lifecycle management
ISO/IEC 20000 Service management
ISO/IEC 15504 Process assessment
ISO PAS 18152Human-system lifecycle processes
ISO/IEC 25010 Quality measurement framework including quality in use
ISO 9241-11 Guidance on Usability
ISO/IEC 25062 Common industry format for usability reports (CIF)
ISO 9241-110 & 12 collectively Principles of software ergonomics
ISO TR 16982 Usability methods supporting human centred design
User Needs Analysis (level 3-5)
Establishes, clarifies and communicates requirements for usability and utility.
Identifies the characteristics of the users and their tasks, and the technical, organisational and physical environment in which the ICT product or system will operate.
System Ergonomics (level 2-5)
Iteratively develops the allocation of function (between the human, machine and organisational elements of the system), user interaction and job design for ICT products and services
based on user requirements, the context of use, relevant ergonomics knowledge and feedback from evaluations of prototypes. This addresses design for any human "ility" such as accessibility, usability, health and safety
Usability Evaluation (level 3-5)
Assessment of the usability (including health and safety, and accessibility) of a new or existing ICT product or service (or prototype).
Methods include user trials, expert review, survey, analytical.
Human Factors Integration(level 5-7)
Ensures that project and enterprise activities related to the user experience are performed by the organisation in order to achieve required levels of ICT product or service usability.
Skills Framework for the Information Age www.SFIA.org.uk