Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Domain | Definition |
Computing | Bottom-up implementation n. Hackish opposite of the techspeak term `top-down design'. It has been received wisdom in most programming cultures that it is best to design from higher levels of abstraction down to lower, specifying sequences of action in increasing detail until you get to actual code. Hackers often find (especially in exploratory designs that cannot be closely specified in advance) that it works best to _build_ things in the opposite order, by writing and testing a clean set of primitive operations and then knitting them together. Naively applied, this leads to hacked-together bottom-up implementations; a more sophisticated response is `middle-out implementation', in which scratch code within primitives at the mid-level of the system is gradually replaced with a more polished version of the lowest level at the same time the structure above the midlevel is being built. Source: Jargon File. |
Source: compiled by the editor from various references; see credits. | |
Crosswords: BOTTOM-UP IMPLEMENTATION |
| Specialty definitions using "BOTTOM-UP IMPLEMENTATION": bottom-up testing ♦ middle-out implementation. (references) |
Hexadecimal (or equivalents, 770AD-1900s) (references)42 4F 54 54 4F 4D 2D 55 50 49 4D 50 4C 45 4D 45 4E 54 41 54 49 4F 4E |
| Leonardo da Vinci (1452-1519; backwards) (references)
|
Binary Code (1918-1938, probably earlier) (references)01000010 01001111 01010100 01010100 01001111 01001101 00101101 01010101 01010000 00100000 01001001 01001101 01010000 01001100 01000101 01001101 01000101 01001110 01010100 01000001 01010100 01001001 01001111 01001110 |
HTML Code (1990) (references)B O T T O M - U P   I M P L E M E N T A T I O N |
ISO 10646 (1991-1993) (references)0042 004F 0054 0054 004F 004D 002D 0055 0050 0049 004D 0050 004C 0045 004D 0045 004E 0054 0041 0054 0049 004F 004E |
Encryption (beginner's substitution cypher): (references)36495454494715555024347504639473948543554434948 |
| 1. Crosswords 2. Orthography 3. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
