what-when-how
In Depth Tutorials and Information
13.4.2.3 Contextual Design
Contextual design is a good design method for requirements elicitation. he analysis
begins with a detailed ethnography, and then several types of diagrams are derived
by the developer in CD. he learning process of organizations plays a less impor-
tant role in CD, while it is important in the STWT. With the STWT, the users can
discuss and make necessary organizational changes after each walkthrough, and
the organizational development is also important as the requirements for software
products. Table 13.2 shows the similarity and difference between STWT and the
other three methods.
13.5 Conclusion
his chapter introduced some basic analysis and design methods of sociotechnical
systems, robustness modeling, and design process. he seven innovative analysis
methods proposed by References 1-6 are used to analyze the interactions between
people and modern technology. However, each method has its own emphasized
point. For example, Zing focuses on the group decision, Stella systems emphasize
Table13.2
SimilarityandDifferencebetweenSTWTandOtherThree
Methods
Similarity
Difference
JAD
1. Utilized workbook,
similar to diagrams
in STWT.
1. JAD takes broad view on
system development, while
STWT focuses on the details.
2. JAD relies on a leader, while
STWT relies on all participants.
Scenario-based
techniques
1. Used for similar
purposes as the
STWT.
1. Interrelationship between a
series of scenarios is hard to
understand.
2. STWT takes a deeper look into
organizational processes.
Contextual
design
1. Diagrams are also
used in CD.
1. Learning process of the
analyzed organizations plays a
less important role.
2. Organizational development has
the same importance as the
development of requirements.
