bonnie
Uploaded by
25 SLIDES
526 VUES
250LIKES

GTA GroupWare Task Analysis

DESCRIPTION

GTA GroupWare Task Analysis. Task analysis concepts GTA -Task analysis in design of complex systems Methods of task knowledge collection GTA conceptual framework Representations and tools Sources. Task analysis concepts. Complex tasks and goals (n to 1)

1 / 25

Télécharger la présentation

GTA GroupWare Task Analysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. GTAGroupWare Task Analysis • Task analysis concepts • GTA -Task analysis in design of complex systems • Methods of task knowledge collection • GTA conceptual framework • Representations and tools • Sources

  2. Task analysis concepts • Complex tasks and goals (n to 1) • hierarchies, flow, multiple processes • users’ unit tasks • (Card, Moran & Newell) & • systems’ basic tasks (Tauber) • primary tasks & • secondary tasks • actions, communication acts

  3. GTA -Task analysis in design of complex systems • Complex systems: • multiple users who interact / collaborate • with / through technology • “Phases” in iterative design • analysis • specification • evaluation

  4. GTA -Task analysis in design of complex systems • iterative design analysis evaluation specification implementation

  5. GTA -Task analysis in design of complex systems • analysis Task model 1: current task world Task model 2: envisioning the future

  6. Methods of task knowledge collection Task model 1: current task world Knowledge sources: • domain experts / (future) users • observation of expert behavior • documents • interaction in situation

  7. Methods of task knowledge collection • domain experts / (future) users knowledge elicitation: e.g. Sebillotte / Graesser question method Question: explain as detailed and complete as possible how you … Answer: “… X and therefor Y” “…X because of Y” Additional questions: Why X? / How X?

  8. Methods of task knowledge collection • Interaction in situation (people, artifacts, history) Ethnographic methods, e.g. interaction analysis (Jordan, Henderson) Identify “hot spots” video - content log - review with actors - generate hypothesis - compare with alternative records - identity patterns

  9. Methods of task knowledge collection Task model 2: envisioning the future • Knowledge sources: • task model 1 • (needs, inconsistencies, conflicting goals) • client (requirements, standards, law) • technology (constraints, possibilities and • expectations, challenges)

  10. GTA conceptual framework Complementary viewpoints, redundant descriptions and cross references: • Agents • Work • Situation

  11. GTA conceptual framework • Agents • actors (individual humans, institutes and groups, machines, systems) with attributes • roles, defined with tasks and object relations • organization (structure of actors, allocation of roles, delegation and mandates)

  12. GTA conceptual framework • Work • task / goal structure / actions (related to roles) • task descriptions (objects and situation) • hierarchical decomposition • temporal structure and triggering • protocols and (expert) strategies - situated

  13. GTA conceptual framework • Situation • objects in object structure (type relations, semantic relations) • environment • history of situation

  14. Representations and tools • GTA representations • conceptual entities • structures • media registrations

  15. Representations and tools • Conceptual entities • relation to other entities • template format for different concepts • Task, Object, Role, Agent, Event

  16. Task Template

  17. Object Template

  18. Role Template

  19. Agent Template

  20. Event Template

  21. Representations and tools • Structures, relation between entities of a type: • type hierarchies (“is a”) • decomposition trees • semantic relations (“contains”) • flow (of data, of control, triggering relations)

  22. Representations and tools • Media registrations • video clips • sound track • picture

  23. Representations and tools • Tools: a design environment for collaborative design EUTERPE • editors for representation types • a repository of task model elements • representations as a view on the database • tools for analysis and reasoning • translation to HTML

  24. name(string) goal(string) name(string) attribute(Name,Value)* action(Name)* Used_by Subrole Object Contains Role Is Responsible Uses Event Triggers Plays Performed_by name(string) description(string) Performed_by Agent Task name(string) skills(string) attitude(string) miscellaneous(string) name(string) goal(string) start_condition(string) stop_condition(string) initial_state(string) final_state(string) duration(integer) frequency(string) type(enum) user_actions(string) system_operations(string) Subtask Triggers Task World Ontology

  25. Sources • Http://www.cs.vu.nl/~martijn/gta • literature on GTA • EUTERPE tool • examples

More Related