Overview of Socio-cognitive Engineering General requirements Theory of Use Design Concept Contextual Studies Task model Design space System specification ImplementationDeployment Evaluation

Overview of Socio-cognitive Engineering General requirements Theory of Use Design Concept Contextual Studies Task model Design space System specification ImplementationDeployment Evaluation Business

Overview of Socio-cognitive Engineering General requirements Theory of Use Design Concept Contextual Studies Task model Design space System specification ImplementationDeployment Evaluation Psychology

Overview of Socio-cognitive Engineering General requirements Theory of Use Design Concept Contextual Studies Task model Design space System specification ImplementationDeployment Evaluation Design

Overview of Socio-cognitive Engineering General requirements Theory of Use Design Concept Contextual Studies Task model Design space System specification ImplementationDeployment Evaluation Engineering

Project  The diagram shows the process of design, implementation and deployment for a single project Roles  The project is carried out by a design team, with well-defined roles, that may change during the project Phase :  Each box represents one phase of the project Methods  Each box can be carried out by one or more methods; need to choose the appropriate method for the project Tools  Each method has associated tools (formalisms, software, hardware) to carry out the method Outcomes  Each phase has outcomes, which must be documented; these are used to inform and validate the design Measures  Each design decision must be validated, by reference to outcomes from one of the phases Elements of Socio-cognitive Engineering

Phases General requirements  Scope, business case, user needs, constraints of project Theory of use  Theories of human cognition and interaction that inform the project Contextual studies  Observation and analysis of how people carry out activities and tasks, with their normal surroundings and tools Task model  Brings together theory of use and contextual studies into an integrated account of how people perform activities, think, work and interact with their current tools and resources

Phases (continued) Design concept  Concept of how people might perform tasks and interact with new technology, interface designs, system images Design space  Systematic exploration of the space of possible designs, selection of design choices System specification  Formal specification of the functions and constraints of the proposed system, to guide implementation

Phases (continued) Implementation  Coding, system integration Deployment  Documentation, packaging, marketing Evaluation  Not a single phase, but an activity that is carried out during each phase, to ensure that the system matches the requirements, and that the requirements are appropriate

Important Issues The process involves a dialogue between the phases  Refer back to previous outcomes  Consider of how the current outcomes can inform future phases Earlier decisions and outcomes may need to be revised to take account of later findings When the system is deployed it will lead to new ways of working and interacting,  Need for new requirements and task model

Verification and Validation Verification  Does the system design match the requirements and specification? Validation  Are the requirements and specification appropriate?

How to carry out a project 1.Form a team 2.Produce general requirements for the project 3.Decide which methods and tools will be used for each phase of the project 4.Decide how the process and outcomes will be documented 5.Decide how the project will be evaluated 6.Carry out each phase of the project, making sure that the requirements match the design 7.Carry out a continuous process of documentation and evaluation

Project team Need a mixture of skills Allocate roles  Roles are based on skills; one person may perform more than one role Some roles for a project team  Team leader  Market researcher: identify business opportunity  User researcher: research theory of use, gather information on stakeholders, plan and carry out contextual studies  Concept designer: produce design concept, example interfaces, storyboards  System designer: produce system specification  Programmer: implement system  Evaluator: evaluate all phases of the project

Activity (10 mins) Form into two project teams for your assignment Within your group, each person lists their skills Discuss possible roles in the project