Projects/Usability/HIG/SearchPattern

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Purpose

A search function allows to generate a subset out of a big number of items based on a user defined pattern. It can usually be applied to various sources and has several options for fine-tuning.

Supplemental to search the filter function reduces the number of items. This operation works on the current list only and does not generate a new output. Filtering should always be instantaneous and must not interrupt the workflow.

Similar to filtering the operation might be used to highlight information. This preselection is a common feature in text processing and used to locate a particular piece of information without concealing the surrounding.

Search

  • Use a search function to generate results based on various sources with sufficient options.
  • Always provide search function via extra secondary dialog.

Behavior

  • Show hints on how to use the search effectively.
  • Run a combined AND search when two words have been entered unless the term is quoted (e.g. Hello World vs "Hello World")
  • Follow the guidelines on delayed operations if the search takes longer.

Appearance

  • (Yet to be defined by the VDG)

Implementation

  • (To be defined by devs)

Filter

  • Apply filter to restrict the number of items of a list.
  • Do not overload the simple filter function by options. If necessary, provide an additional search.

Behavior

  • Perform filter operations always instantaneously.
  • Make the operation as simple as possible. For instance, do not apply multi-dimensional filtering or do not use logical operators for input.
  • Run operation case insensitive, unless it is important.
  • Make input control large enough to show at least 20 characters.
  • By default clear the filter input when the content is changed. But consider to provide a sticky function and keep the filter until it is cleared explicitly. With this option users do not need to research after selecting or referencing an item.
  • Consider to provide auto complete feature to the input based on previous operations.

Appearance

  • Show the filter pattern above the list of items.
  • Use Ctrl+H to show/hide the input.
  • Do not hide the input if the filter is an essential part of the application, i.e. when the list of items usually is large.
  • Show 'Search...' as place holder unless the control is focused.

Implementation

  • (To be defined by devs)

Highlight

  • Provide 'highlight search' when the content is relevant.
  • Do not overload the simple highlight function by options. If necessary, provide an additional search.

Behavior

  • Perform highlight operations always instantaneously.
  • Make the operation as simple as possible. Do not add options.
  • Run operation case insensitive.
  • Make input control large enough to show at least 20 characters.
  • Consider to provide auto complete feature to the input based on previous operations.

Appearance

  • Place the input control at the bottom of the content area.
  • Hide the input by default.
  • Active the control and focus it on ctrl+F.

Implementation

  • (To be defined by devs)

Legacy references


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