Headline

A problem in software design to retain extensibility of different kinds

Description

The Expression problem is this: Given a system that implements a number of operations on certain data where such data is formed recursively according to a number data variants, can we extend the system modularly (without revising existing code units, possibly without recompilation, possibly with strong guarantees such as static typing for the initial system and any extension in separation) so that additional operations are implemented for the existing data variants or additional data variants are introduced and existing operations are extended for those.

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    For you are available next options:

    will make text bold.

    will make text italic.

    will make text underlined.

    will make text striked.

    will allow you to paste code headline into the page.

    will allow you to link into the page.

    will allow you to paste code with syntax highlight into the page. You will need to define used programming language.

    will allow you to paste image into the page.

    is list with bullets.

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    will allow your to insert slideshare presentation into the page. You need to copy link to presentation and insert it as parameter in this tag.

    will allow your to insert youtube video into the page. You need to copy link to youtube page with video and insert it as parameter in this tag.

    will allow your to insert code snippets from @worker.