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 T2: Examples of Usability Problems
 
Table 2

Example of usability problems related to each of the factors


 

Many of the examples in this table were extracted from the list of common usability problems by Dumas and Redish [1].

 

 

 

Usability Factor

Example of potential problems

1

Understandable

§ Missing brief overviews of process description elements

§ No glossary

2

Easy to learn

§ No tips for enacting the process

§ Not enough examples

3

Well-structured

§ Steps not described in the order they are performed

§ Level of headings are not clearly distinct

4

Consistently presented

§ Procedural steps not formatted consistently

§ Format and layouts of descriptions are inconsistent

5

Effectively presented

§ Too much text – lack of lists, tables, and graphics

§ Action steps and text explanations are not clearly distinct

6

Effectively supported

§ No work product templates

§ Many instructions but no checklist

7

Tool-supported

§ Hard to maintain because of process description authoring tool constraints

§ No tool to check the broken links in cross-references

8

Complete

§ Process element used but not defined (e.g. mention an activity to perform but no description)

§ Missing steps

9

Concise

§ Overlapping information

§ Extraneous information

10

Unambiguous

§ Use of double meaning words

§ Use of vague words

11

Up-to-date

§ Contains obsolete information

§ Does not represent the most recent trend, policy, etc.

12

Operable

§ No description of how to select and use support tools

§ No description for roles and their responsibilities

13

Navigable

§ No index

§ Not enough levels in the table of contents

§ Lack of cross- references

14

Tailorable

§ No tailoring guide (e.g. for activities and work products)

§ Hard to tailor because of technology constraints

 

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[1] Dumas, J.S., Redish, J.: A practical guide to usability testing. Intellect Books, Exeter, England ; Portland, Or. (1999)