| Software engineering - | (Software Engineering) a discipline that encompasses the process associated with software development, the methods used to analyze, design and test computer software, the management techniques associated with the control and monitoring of software projects and the tools used to support process, methods, and techniques. |
| Stepwise refinement - | (Software Engineering) a technique for accomplishing functional decomposition or procedural design (also called partitioning) |
| Structured programming - | (Software Engineering) a design method that limited design constructs to only three basic forms and constrains program flow for better quality |
| System engineering - | (Software Engineering) focuses on the analysis and design of all elements of a complete product, service, or technology for the transformation of information or control |
| Task analysis - | (Software Engineering) a software engineering action that is conducted as part of user interface design; intended to better understand how a user is to interact with a system |
| Test case design - | (Software Engineering) a set of techniques for deriving effective test cases |
| Tools - | (Software Engineering) application software used to perform software engineering tasks (e.g., design tools, testing tools); see also CASE tools |
| UML (Unified Modeling Language) - | (Software Engineering) a comprehensive diagrammatic notation for the analysis and design of software |
| White box testing - | a test case design technique that makes use of a knowledge of the internal program logic |
| AAC - Autoclaved Aerated Concrete | (Concrete Engineering) Exceptionally lightweight precast concrete with high thermal qualities and fire resistence. Suitable for cutting with ordinary hand tools. Mix design is composed of portland cement, sand or siliceous material, lime, gypsum, finely powdered aluminum, and water. Initial mix is a combination of portland cement, sand, lime and gypsum to produce a slurry. Finely powdered aluminum mixed into a paste is added prior to placement into large, rail-like forms. The finely powdered aluminum reacts with the alkaline components of the cement and lime to produce hydrogen gas, which increases the volume approximately five times producing a uniformly, dispersed cellular structure. Units are cut to required shape. Units are placed in an autoclave, an enclosed pressurized chamber, and steam cured at 3500 F. Approximately 80% of the ultimate volume consists of air voids. |