Monday, May 10, 2010

Surveys and Interviews

Survey: a series of predetermined questions given to users of or participants in a system.

Purpose/ Advantage:
  • When responses are multiple choice or ranked numerically on strength of feeling the results can be collated in a database or spreadsheet and the trends observed.
  • Open questions provide an opportunity for users to respond freely and can reveal unanticipated needs.
Anonymous/Identifiable:
  • Responders to a survey can be anonymous; anonymity could generate honest responses or conversely, dishonest or non-serious responses
Closed questions: a question with a suggested limited number of responses which should be selected by the responder

Advantages:
  • trends can be can observed
  • anonymity

Disadvantages:
  • does little to encourage the responder to open up
  • not many people volunteer to complete surveys, often some sort of incentives are given to encourage responders
Open question: questions that do not suggest an answer and requires the responder to provide the answer

Advantages:
  • answers are of the responder's personal opinion and is not limited
Disadvantages:
  • trends cannot be easily observed
  • accurate analysis cannot easily be made to find a relation between numerous surveys

Interview: discuss formally with (somebody) for the purpose of evaluation

Purpose/Advantage:
  • open questions are normally employed, therefore they can probe more deeply than a survey
  • may suggest surprising new directions
Focus groups: a group activity where you gather users or participants with similar interests in the system; brings together a no. of people for a group discussion or interview were all can contribute their ideas.

Monday, May 3, 2010

Understanding the problem

Closed questions: have a fixed number of answers
Ex. Which of the following is your favourite colour?

Open questions: does not require a tick box or anything of the sort.
Ex. 'What did you do today?'

Interview: more in depth, unexpected resp0nses,

Survey: time-efficient, requires enticement, can it be analysed?
A good survey has a combination of closed and open questions, mostly closed perhaps ONE open question where you can invite an uninvited response

Survey: URL, McAuley students fill
McAuley network information system is accessed using a computer or laptop
In the near future, students will be able to carry these laptops around with them

Q. Issuing laptops to students
(be unbiased; give staff the survey; hand survey out to different focus groups; make a list for focus group to choose eg. 1. Parents 2.Staff 3.Students)

Q. Bringing your own laptop
Stakeholders: students, staff, parents

Issues: laptop being stolen, lost, virus
Rate this issue according to its importance

Sunday, May 2, 2010

System Development Cycle

Problems and Plans p.244

System Development Cycle (UMDIT)

  1. Understand the problem- Interview participants, survery participants, what are the inputs? what are the outputs? what are the processes? who is involved with the system?
  2. Making a decision- what type of solution? an IT solution? online or web-based?
  3. Designing a solution- (making it happen), decide what software and hardware are required e.g. make a spreadsheet and put it up on sharepoint for a bus duty roster
  4. Implementing the solution- preliminary testing. putting it on sharepoint, e-mailing everyone a set of instructions, installing hardware and software, training
  5. Testing & Evaluating-Maintaining a solution- experiment (get someone to try it out), getting feedback, sample data (data that represents the day-to-day; typical data) and test data (checking for pan unusual or unexpected value)

Using Excel

  • Formula; b7+c7+d7
  • Function; =SUM (b7:d7)