Requirements elicitations

is a practice of researching and discovering the needs and gaining knowledge about:

• stakeholder, expectations, current state

• domain, tasks and system & its context

• are a category of research tasks that use visual, verbal

• concepts and guidelines of empirical research methods

  • stakeholder

  • data collection

  • data analysis

• are people actively involved in the project or affected by its execution

  • build project, use it, manage it

  • main soure of project goals and requirements

• needs to identify stakeholders and assess their characteristics

  • their expectations

  • importance to project

  • requirements to project

• Non probability sampling

  • subjects have not equal chance of being selected

  • suitable for: pilot, case studies, development of hypothesis

• Pobability sampling

  • every subject has equal chance of being selected

  • randomized process

  • suitable for: verifying of hypothesis and representativeness

• subjects selected based on their easy access and proximity to researcher

• examples

  • colleagues, colunteer users, proxy client, family members

• non probability sampling

• sequential sampling method

  • select group of subjects

  • study

  • select additional group of subjects

  • update study

  • …

    
    

• Non probability sampling

• subjects are asked to recommend subjects with similiar trait (feature) of interest

• helps identifying rare subjects for study

• gain a deeper understanding of human behaviour and the reasons for this behaviour

• characteristics

  • unstructed data, small sample size, categorization and summary, subjective conclusion

• methods

  • interview, workshops, focus groups

• characteristics

  • large” sample size, structured data, statistically significant results, generalizable

• methods

  • surveys (questionnaires), observations, data analysis