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-- HCDI and UXD Underpinnings --

I. UX Design Principles:
a. Empathize: to understand the pain points.
b. Ideate: to brainstorm possible solution scenarios.
c. Design: to design according to specific user needs.
d. Prototype: to develop a satisficing prototype.
e. Testing: to employ usability syudies towards a final
      design product.

5 Aspects of UXDE.jpg

II. HCDI Principles:
a. Organizational Design and Management:

According to Organizational Behaviour (Bobbins, Judge, & Campbell, 2012), the six key elements to an org structure are:

  • Work specialization.

  • Departmentalization.

  • Chain of command.

  • Span of control.

  • Centralization.

  • Formalization.


b. Industrial Design:

According to Cambridge Design Technology, the main principles of effective industrial design include functionality, aesthetics, simplicity, and innovation. 

  • Aesthetics.

  • Functionality.

  • Innovation.

  • Simplicity.

 

Designers must ensure the product fulfils its purpose efficiently, incorporate pleasing visual elements, promote ease of use, and embrace innovation to push boundaries and deliver enhanced user experiences.

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​c. Usability Engineering:  

According to Jakob Nielsen – the man often called “the king of usability” – the main components of usability are: learnability, efficiency, memorability, handling errors, and satisfaction (Aug 4, 2017).


d. Creative Design Thinking:  

Understand by asking people; Explore by finding patterns; Prototype by making tangible; Evaluate by always iterating (Anonymous, n.d.).


e. Life Critical Systems: 

The most important emergent property of a critical system is its dependability. In 1995, Laprie proposed the term dependability.

 

It covers the interrelated/interconnecting system(s) characteristics as referred to as availability, reliability, safety and security.

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f. Cognitive Engineering: 

The cognitive systems engineering (CSE) design approach focuses on supporting humans in managing cognitive complexity in sociotechnical systems. Cognitive complexity includes communication, decision-making, problem solving, and planning.

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Cited source:

Savoy A, Militello LG, Patel H, Flanagan ME, Russ AL, Daggy JK, Weiner M, Saleem JJ. A cognitive systems engineering design approach to improve the usability of electronic order forms for medical consultation. J Biomed Inform. 2018 Sep;85:138-148. doi: 10.1016/j.jbi.2018.07.021. Epub 2018 Jul 30. PMID: 30071316.

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