41
2.11.1 Gathering The data 1.
Observation
Observations are the fact-gathering technique in which systems analysts participating or watching someone who is doing an activity to learn the system.
Observation is one of many effective data collection techniques for studying a system Whitten et al, 2004.
bservation has its advantages and disadvantages, the following advantages and disadvantages of observation according to Whitten et al, 2004:
1. Advantages of observation:
- Data are collected based on observations can be very reliable. Sometimes observation done by verified validity of the data which
can directly see individually.
- Analysis can see what actually happened. The Complex tasks sometimes difficult to explain with words. Through the
observation, system analyst can identify tasks that are missing or not described accurately by the other fact-finding techniques.
Analysts can also find data describing the physical environment of a task.
- Observations are relatively inexpensive compared to other fact- finding techniques. Another fact-finding technique usually requires
a special time of labor and a lot of money. 2. Disadvantages of observation
42 - People usually feel uncomfortable when being watched observed
they may apply differently when observed.
2. Interview
Is a two-way communication to get data from respondents Jogiyanto, 2008. 1. Advantages of interview Jogiyanto, 2008:
- Good corporate from respondent can be happened. - Special visual aid or other assessment tool can be done.
- Respondents who had no knowledge can be identified. - The interviewer can filter the respondents as required.
2. Disadvantages of interview Jogiyanto, 2008: - Requires trained interviewer.
- Long data collection time. - Some of respondent did not want to talk with strangers.
3. Study Literature
Is a written record of events or occasions in the past and journals in a particular scientific field; including important documents is a reference for researchers in
understanding the object of his research. Even the literature, relevant literature is also included in documents that support the research. All documents relating to
the research in question should be noted as a source of information Gulo, 2002.
2.11.2 Object Oriented Concept
Kategori