Changing just one of its chemical components - a single genetic code element
- is enough to generate blonde hair.
Taken together, the signals lead to a unique 'fingerprint' for each code element
For example if a code element
1 of sequence S, is mutated by -1, and the cost for mutated element is evaluated.
To make the presented approaches to tuning (automatic and cooperative), homogeneous and to make optimization on the fly possible and effective we concluded that the application knowledge should be described as the following terms: measure point (a location where the instrumentation must be inserted), performance model (determines an optimal application execution time), tuning point (the code element
that may be changed), tuning action (the action to be performed on a tuning point), and synchronization (policy determining when the tuning action can be invoked).
For example, a record assigned the local library classification of PER and a local subject heading "Periodical" is clearly a record for a serial; why go to the added effort and expense of ensuring that the value "s" for serial is recorded in the bibliographic code element
of the leader, why not use a bibliographic level default of "m" (for monograph) or blank (in assigned meaning) in all records?
Then code elements
were randomly rearranged or cut out.
This feature highlights both the opening and closing code elements
to visually define separate code blocks and determine mismatched or misspelled paired code elements
Orientation was defined by pixels, which are also measurable with precision, as were the HTML code elements
such as images, tables, and text.
The book's layout offers code elements
in different colors, color used in explanatory diagrams, and color screenshots, plus FAQ sidebars and warning boxes.
Individuals and teams can easily share and re-use common code elements
with this functionality.